How Does ZocDoc Work: Revenue Model Explained

Key Takeaways

• A Zocdoc-like healthcare marketplace connects patients with providers for real-time appointment booking and patient management.
• Patients use the platform for streamlined provider discovery, availability checks, and digital intake, enhancing access to care.
• Providers benefit from automated workflows, scheduling integration, and increased patient visibility through the marketplace.
• The revenue model includes per-booking fees, annual listing fees, sponsored results advertising, and enterprise solutions.
• The marketplace diversifies revenue by combining transactional fees with premium ads and software solutions, optimizing patient acquisition.

Patient acquisition remains one of healthcare providers’ biggest cost challenges, while unfilled appointment slots continue to impact revenue and operational efficiency. This gap is encouraging enterprises to explore new healthcare marketplace opportunities, understanding how Zocdoc makes money has become a blueprint for building scalable healthcare appointment scheduling app business models.

Zocdoc’s business model combines real-time appointment scheduling, insurance-based provider matching, verified patient reviews, digital intake, automated reminders, multi-channel booking and sponsored provider visibility into a unified healthcare marketplace. Rather than charging patients to book appointments, the platform generates revenue through pay-per-booking fees, sponsored search placements and provider acquisition services, aligning its monetization with measurable value delivered to healthcare providers while keeping the patient experience frictionless.

In this blog, we will talk about how Zocdoc makes money, its revenue model, monetization strategies, business economics, key revenue streams and how IdeaUsher can help you build a scalable healthcare appointment scheduling app with a sustainable marketplace business model.

Why Healthcare Marketplaces Are Growing Globally

The global digital health and healthcare marketplace sector is undergoing a rapid expansion, projected to grow from $420.2 billion in 2026 to $1.83 trillion by 2033 at a 23.4% CAGR. Historically, patient care delivery was defined by physical proximity, manual scheduling, opaque pricing, and fragmented medical records.

Healthcare marketplaces replace fragmented systems by connecting patients with doctors, clinics, diagnostic centers, and pharmacies. Spurred by growing digital care demand with 65% of U.S. individuals accessing online medical records, these platforms unify provider discovery, transparent pricing, appointment booking, telehealth, and payments to transform modern healthcare delivery.

A. Fragmented Healthcare Access Creates Patient Friction

Traditional healthcare systems across both developed economies and emerging markets are plagued by severe operational fragmentation that creates significant friction for consumers seeking care:

• Long Specialist Wait Times: Fragmented scheduling and poor provider allocation create multi-week or multi-month delays. The AMA reports nearly 1 in 4 physicians have wait times exceeding one month for new patients.
• Opaque Healthcare Pricing: Patients often cannot determine consultation, lab, or procedure costs before treatment. KFF found only 9% of U.S. adults knew hospitals were required to publish prices online.
• Provider Information Gaps: Comparing doctor credentials, outcomes, patient reviews, and insurance networks remains difficult. Pew Research found 16% of internet users use online provider ratings and reviews.
• Fragmented Medical Records: Patient data remains siloed across EHRs and hospital portals. In 2024, 59% of individuals had multiple patient portals, while only 7% used an app to unify their medical records.

B. Healthcare Marketplaces Simplify Patient-Provider Discovery

Digital healthcare platforms resolve systemic friction by acting as an intelligent matching layer between patient demand and healthcare provider capacity:

These capabilities reduce traditional access barriers by combining provider discovery, real-time scheduling, transparent pricing, verified information, and telehealth, helping patients make faster and more informed healthcare decisions.

• Real-Time Calendar Aggregation: API integrations with EHRs and practice management systems convert available appointments into bookable slots. In 2024, 9 in 10 U.S. hospitals enabled patient health information access through APIs.
• Verified Reviews & Quality Metrics: Verified patient reviews, board certifications, and clinical credentials improve provider selection. Pew Research found 37% of adults researching doctors consulted online ratings or reviews.
• Cross-Border & Regional Access: Integrated telehealth expands specialist access for rural and underserved communities. In 2024, 28% of U.S. employers said telemedicine would be very important for future employee healthcare.

C. Growing Digital Health Demand Is Driving Platform Investment

A convergence of macroeconomic trends, consumer behavioral shifts, and venture capital is accelerating global investment in marketplace platforms:

• Surging Digital Health Investment: Digital health startups raised $10.1 billion across 497 deals in 2024, reflecting sustained venture capital interest despite a more selective funding environment.
• Consumer-Centric Digital Care: With 73% global smartphone penetration, consumers increasingly expect healthcare to deliver the same on-demand digital experience as banking, retail, and transportation.
• Employer & Payer Adoption: Insurers and employers use digital health platforms to expand virtual care, mental health, and chronic disease management. In 2024, 33% of U.S. employers offering health benefits identified telemedicine as an important future care benefit.

The Enterprise Takeaway: Healthcare marketplaces succeed because they replace fragmented, offline coordination with transparent, digital access. By pairing real-time provider discovery with upfront pricing, seamless scheduling, and hybrid care delivery, digital platforms lower systemic care costs while capturing massive global healthcare transaction volume.

What Is Zocdoc and What Makes Its Marketplace Different?

Zocdoc is a digital healthcare marketplace and online doctor-booking platform that connects patients with healthcare providers across 250+ specialties. Patients can search by visit reason, specialty, insurance, location, and appointment availability, compare provider profiles and verified reviews, and book in-person or virtual appointments online.

As a free “patient-first healthcare marketplace,” Zocdoc lets patients search and book appointments while helping providers attract new patients and manage digital scheduling. Key capabilities include real-time availability, insurance matching, verified reviews, online booking, digital intake, appointment reminders, calendar integration, and multi-channel booking across platforms.

A. Zocdoc connects patients with available healthcare providers

Zocdoc bridges the gap between patient care intent and real-time provider schedule availability. Its core marketplace platform indexes tens of thousands of independent practices, medical groups, and over 60 hospital networks.

• Intelligent Search Matching: Zocdoc’s proprietary search engine translates natural language patient queries (e.g., “ear infection” or “skin check”) into medical specialties while cross-referencing geographical location, specific insurance carrier networks, and immediate calendar availability.
• Real-Time Calendar Integration: Through bi-directional API connections with 175+ EHR and Practice Management Systems, Zocdoc displays live, bookable time slots, reducing administrative friction and front-desk phone calls.
• Speed to Care: The platform turns latent provider capacity into accessible appointments: 1 in 3 appointments booked on Zocdoc takes place within 48 hours, and nearly 50% occur within 72 hours.

B. Free patient booking drives high-intent healthcare demand

To maximize marketplace liquidity and lower user friction, Zocdoc maintains a 100% free service for patients. Removing payment barriers attracts a highly valuable patient demographic with urgent care needs and commercial coverage.

• High-Value Patient Demographics: Approximately 84% of Zocdoc users hold commercial insurance plans. Furthermore, 70% of bookers are aged 18 to 42, capturing tech-savvy Millennials and Gen Z patients who prioritize digital convenience and instant access.
• Verified Patient Reviews: Zocdoc automatically solicits feedback only from patients who completed a verified appointment via the platform, establishing a trustworthy review system. Providers with 30+ verified reviews experience a 30% lift in patient booking velocity compared to lower-rated listings.
• High Retention & Repeat Visits: While Zocdoc facilitates the initial booking, 4 out of 5 patients rebook with the same healthcare provider for future care, driving long-term patient lifetime value (LTV) for practices.

C. Providers pay to acquire new patients through Zocdoc

Zocdoc keeps patient access free and earns from provider-side monetization, including booking fees and other paid services. This provider-focused approach is central to how Zocdoc makes money.

• Pay-Per-New-Patient Model: Providers are charged only when a new patient schedules an appointment through the Zocdoc marketplace, with rates typically ranging between $35 and $110+ per booking depending on specialty and metro market competition.
• Zero Charge for Existing Patients: Rebookings, returning patient visits, and appointments booked via the provider’s direct website widget or Google Business Profile incur $0 in marketplace fees.
• Measurable ROI: On average, practices leveraging Zocdoc’s patient acquisition tools realize an 8x return on investment (ROI), making it a predictable, pay-for-performance alternative to traditional healthcare advertising.

D. A two-sided model connects healthcare demand and supply

At its core, Zocdoc functions as a two-sided network where value creation relies on balancing high-intent patient demand with scalable provider supply.

• Solving Both Sides of the Pain Point: For patients, it solves the discovery friction of long wait times and phone tag. For providers, it monetizes idle calendar capacity and mitigates the ~$150 billion annual cost of unfilled cancellation slots across US healthcare.
• Network Effects: As more providers join the platform, choice and appointment speed increase for patients. Higher patient volume, in turn, makes Zocdoc an essential acquisition channel for practices, creating a self-reinforcing growth loop.
• Marketplace Liquidity: Zocdoc focuses heavily on density within specific local markets, ensuring that when a patient searches in a specific metro area, there is sufficient supply across all major specialties and insurance plans.

How a Zocdoc-Like Healthcare Marketplace Works

A Zocdoc-like platform operates as a two-sided healthcare marketplace connecting patients and healthcare providers. Patients discover care, verify insurance compatibility, and book appointments in real time. Meanwhile, providers publish schedule availability, manage incoming patient workflows, and scale their practice with new patient acquisitions.

A. How the Platform Works for Patients

The patient journey is designed to make healthcare discovery and appointment booking faster and more convenient. From provider search to digital intake, each step reduces friction and improves access to care.

The process guides patients through provider discovery, profile comparison, real-time availability, appointment selection, digital intake, and automated reminders. This creates a smoother journey from initial search to confirmed care.

• Search for a Healthcare Provider: Patients input key filters including medical specialty, specific visit reason, health insurance plan, target location, or preferred time frame.
• Compare Relevant Providers: The system surfaces matching clinician profiles complete with credentials, verified patient reviews, accepted insurance networks, and immediate openings.
• Check Real-Time Availability: Patients view up-to-second open appointment slots populated directly from the provider’s active schedule for in-person or telehealth visits.
• Select an Appointment: Patients select a convenient date and time slot that fits their personal schedule for a seamless booking experience.
• Complete Digital Intake: Prior to the visit, patients fill out digital registration forms, upload photo identification, and submit insurance card images online.
• Receive Booking Confirmation and Reminders: Automated SMS, email, or push notifications confirm the booking and send timely reminders to minimize missed visits.

B. How the Platform Works for Healthcare Providers

For providers, the platform streamlines patient acquisition and appointment management. It connects scheduling systems, automates administrative workflows, and helps practices convert available capacity into confirmed bookings.

The provider workflow focuses on profile management, scheduling integration, appointment availability, patient acquisition and administrative automation, helping practices efficiently manage bookings while maximizing visibility and utilization of available care capacity.

• Create and Manage a Provider Profile: Practices set up comprehensive profiles detailing specialties, clinical services offered, office locations, accepted insurance plans, and board certifications.
• Connect Scheduling Systems: Real-time API integrations sync the marketplace directly with existing Practice Management Systems (PMS) or Electronic Health Records (EHR).
• Publish Available Appointment Slots: Unfilled time slots and last-minute cancellation openings automatically update on the marketplace for active patient discovery.
• Receive New-Patient Bookings: Qualified new patients find open slots and complete confirmed bookings instantly without requiring manual front-desk calls.
• Manage Appointments and Patient Information: Staff manage incoming appointments, review pre-visit digital intake data, send automated reminders, and adjust calendar rules from a centralized portal.
• Acquire Patients Across Multiple Channels: The platform expands reach by syndicating provider openings across marketplace apps, practice websites, search engines, and partner directories.

How Does the Platform Connect Patients With Providers?

The marketplace serves as an intelligent intermediary linking real-time patient intent with live provider capacity. The algorithm cross-references clinical specialty, visit reason, insurance coverage, location, and availability with indexed provider data. It then surfaces the most relevant care options for each patient. This enables a frictionless conversion journey from initial search to provider evaluation, slot selection, and confirmed booking.

How Healthcare Marketplace like Zocdoc Makes Money?

Zocdoc-like healthcare app operates on a two-sided marketplace revenue model that connects healthcare providers with patients seeking appointments. While patients use the platform for free, Zocdoc generates revenue through booking fees, annual listings, performance-based advertising and enterprise solutions, forming the core of how Zocdoc makes money.

Revenue Breakdown Summary

The healthcare marketplace combines transaction fees, provider subscriptions, sponsored visibility, and enterprise solutions to diversify revenue while aligning monetization with patient acquisition, provider demand, and practice growth.

How a Zocdoc-Like Marketplace Can Diversify Revenue

By combining transactional pay-per-booking fees with performance ad revenue, Zocdoc achieves a highly diversified, recurring revenue architecture.

• Base Transactional Layer (~70-75% of Revenue): Predictable marketplace fees generated every time a new patient books an appointment form the baseline core revenue.
• High-Margin Advertising Layer (~20-25% of Revenue): Premium Sponsored Results ads yield high gross margins as established practices compete for priority positioning in lucrative zip codes.
• SaaS & Enterprise Integration (~5-10% of Revenue): Annual directory platform fees and specialized enterprise API integration packages create stable recurring SaaS revenue streams.

These revenue streams work together to balance performance-based income with recurring provider revenue. The model starts with patient acquisition fees, then expands monetization through premium visibility, software solutions, and enterprise integrations, allowing the marketplace to capture value across different stages of the healthcare booking journey.

1. Pay-Per-Booking Fees From New Patients

The core engine of how Zocdoc makes money is its pay-per-booking marketplace fee. It phased out its legacy flat subscription model which charged practices roughly $300 per month ($3,600/year) regardless of booking volume, in favor of a performance-driven pay-per-booking structure.

• New Patient Acquisition Fee: Healthcare providers pay a dynamic fee ranging between $35 and $110+ per booking whenever a brand-new patient schedules an appointment through the Zocdoc marketplace or mobile app.
• Zero Cost for Existing Patients: Practices pay $0 in booking fees for returning patients or for patients who book directly through the provider’s own website using Zocdoc’s embedded booking widget.
• Conversion Realism: On average, 80–85% of bookings on Zocdoc represent new patient acquisition, ensuring practices only incur operational costs when expanding their active patient base.

2. Provider Fees Based on Specialty and Location

Booking fees vary across the platform and charges depend on specialty economics and local competition, helping explain how Zocdoc makes money through dynamic provider pricing.

• Specialty Multipliers: High-LTV specialties such as Dermatology, Orthopedics, and Dental may have higher booking rates of $75–$120+. Primary Care and Behavioral Health may range from $35–$60.
• Geographic Tiering: Acquisition fees in dense markets like New York City or San Francisco can be 20–40% higher than in suburban or rural areas due to provider competition.
• Annual Platform Subscription: Zocdoc may charge approximately $300–$350 per provider annually for directory access, profile verification, and calendar integration.

3. Sponsored Results for Premium Search Visibility

To capitalize on high-intent search traffic, it offers Sponsored Results, a native cost-per-booking advertising program that allows practices to buy top-of-page visibility.

• Bidding Increments: Practices place competitive bids on top of standard booking fees often adding an extra $15 to $50+ per booking to secure the top 1 to 3 search slots for specific specialties and zip codes.
• Impression Share & Clicks: Sponsored listings see an average 3x to 5x increase in profile impressions and a 60–80% higher click-through rate (CTR) compared to standard organic listings.
• Budget Caps & Guarantee: Providers can set strict monthly ad budget caps (e.g., $500/month). Zocdoc operates on a guaranteed maximum cost-per-booking model, ensuring practices are never charged for ad impressions that do not convert into confirmed bookings.

4. Provider Software and Practice Solutions

The marketplace integrates with clinical and administrative workflows through back-office tools. These streamline schedule management, reduce no-shows, and minimize manual data entry, supporting how Zocdoc makes money through provider services.

• Real-Time EHR/PMS Synchronization: Zocdoc’s sync engine connects with 175+ PMS and EHR platforms, including Epic, Cerner, Athenahealth, and Kareo. It updates calendar availability every 60 seconds.
• Intake & Verification Efficiency: Digital check-in collects intake forms, IDs, and insurance cards before visits. This can reduce patient wait times by 10–15 minutes and verification costs by up to 40%.
• Enterprise Hospital Contracts: Large health systems and multi-specialty groups with 100+ providers can negotiate enterprise contracts. These combine volume-based booking fees with custom API integrations.

5. Multi-Channel Booking and Patient Acquisition

The healthcare marketplace like Zocdoc acts as a multi-channel acquisition funnel designed to fill idle clinical capacity, reduce empty slots, and convert last-minute cancellations into billable care hours.

• High Marketplace Volume: It drives millions of medical searches monthly, with approximately 40–50% of all appointments booked occurring within 24 to 72 hours of the search.
• Cancellation Monetization: Unfilled appointment slots due to last-minute patient cancellations cost the US healthcare system an estimated $150 billion annually. The algorithmic matching fills late-cancelled slots up to 70% faster than traditional front-desk call lists.
• Syndicated Booking Channels: The platform shares provider availability across health plans, search engines, and local directories. This gives providers access to 10+ third-party distribution channels from one central portal.

What to Consider Before Building a Healthcare Marketplace?

Building a custom healthcare marketplace requires balancing a consumer-grade patient experience with complex, enterprise-grade backend clinical systems. Because healthcare involves regulated PHI and mission-critical practice workflows, engineering teams must evaluate four key operational and technical pillars before starting development.

A. Define the Patient-Provider Marketplace Experience

A successful healthcare platform must deliver zero-friction conversion for patients while providing granular control for practice administrators.

Patient-Side Experience (Demand Side): The platform simplifies provider discovery, comparison, booking, and digital intake. It helps users find suitable care faster while reducing friction throughout the appointment journey.

• Intuitive Search & Filtering: Enable multi-attribute search across 100+ medical specialties, sub-specialties, insurance carrier plans, procedure types, geographic radius, and immediate slot availability.
• Digital Onboarding & Intake: Streamline registration with smart OCR scan for insurance cards and photo IDs, reducing digital check-in times by 50–60%.
• Trust & Decision Signals: Surface verified patient review ratings, provider credentials, languages spoken, board certifications, and video introduction profiles.

Provider-Side Experience (Supply Side): The platform helps practices manage availability, reduce scheduling inefficiencies, acquire patients, and optimize appointment capacity through centralized tools.

• Multi-Location Calendar Dashboard: Allow clinic administrators to configure rules for multiple locations, associate specific clinicians with customized time-slot buffers, and distinguish in-person vs. telehealth visits.
• No-Show Mitigation: Automated, multi-channel appointment reminders (SMS, Email, WhatsApp) that reduce missed appointments from the industry average of 18–20% down to under 5%.
• Analytics & Practice Insights: Real-time dashboards tracking patient acquisition cost (PAC), slot utilization rates, cancellation fill-rates, and overall patient review sentiment.

B. Plan Scheduling, Matching and Healthcare Integrations

To prevent double-bookings and maintain real-time accuracy across thousands of providers, the platform’s backend must interoperate directly with hospital networks and Electronic Health Record (EHR) databases.

• Modern Interoperability Standards: Build on HL7 FHIR R4 (Fast Healthcare Interoperability Resources) APIs and SMART on FHIR frameworks to ensure seamless data exchange across diverse health IT environments.
• Core EHR Systems Coverage: Plan bi-directional integration for top clinical engines representing ~80%+ of US provider systems:
  • Epic Systems: via fhiropen.epic and US Core FHIR profiles.
  • Oracle Health (Cerner): via code.cerner FHIR R4 services.
  • athenahealth & Kareo: via direct RESTful scheduling APIs.
• Algorithmic Search & Matching Engine: Implement Elasticsearch or OpenSearch to evaluate geospatial proximity, insurance payer validation, and live schedule data. Refresh availability within 60 seconds to reduce booking friction and improve search accuracy.

C. Build for Healthcare Security and Compliance

Healthcare applications are high-value targets for cyber threats and face stringent global regulatory oversight. Security cannot be an afterthought; it must be architected into the infrastructure from day zero.

US Regulatory Frameworks: A healthcare marketplace must address HIPAA, HITECH, patient data access, information blocking, and contractual obligations to maintain compliant healthcare operations.

• HIPAA & HITECH Compliance: Mandatory implementation of Administrative, Physical, and Technical safeguards for handling Protected Health Information (PHI).
• Business Associate Agreements (BAAs): Executed legally with all cloud infrastructure (AWS, GCP, Azure) and third-party SaaS vendors (e.g., Twilio for SMS, SendGrid for transactional emails).
• 21st Century Cures Act / ONC Directives: Strict adherence to anti-information blocking rules, ensuring transparent patient data access and standardized API capabilities.

Technical Security & Encryption Standards: A healthcare marketplace requires strong encryption, controlled access, auditability, and recognized security frameworks to protect sensitive patient and provider data.

• Data Encryption: AES-256 encryption at rest for database instances and object storage, and TLS 1.3 for all data in transit.
• Identity & Access Management: Granular Role-Based Access Control (RBAC), mandatory Multi-Factor Authentication (MFA) for providers, and OAuth 2.0 authorization protocols.
• Audit Logging & Certifications: Comprehensive immutable audit trails for every PHI read/write event, aiming for SOC 2 Type II and HITRUST CSF certifications to build enterprise trust with health systems.

D. Choose a Revenue Model That Can Scale

Selecting the right monetization framework dictates marketplace unit economics, seller acquisition velocity, and long-term platform gross margins.

How IdeaUsher will Help You Build Healthcare Marketplace App

IdeaUsher is an enterprise product engineering partner and digital health innovator with 11+ years of software expertise across 50+ countries. Backed by 250+ experts, 1,000+ completed builds, and a 4.9/5 Clutch rating, we build custom healthcare booking ecosystems from scratch.

We avoid generic templates and build scalable, HIPAA-compliant platforms with real-time schedule sync, intelligent AI matching, bi-directional EHR/PMS integrations, and automated insurance verification. These capabilities support how Zocdoc makes money through efficient provider acquisition and marketplace services.

A. Build Patient and Provider Experiences That Convert

We design dual-sided, user-centric interfaces tailored to streamline appointment scheduling for patients while optimizing practice workflows for medical providers.

• Patient Booking & Search Experience: We build intuitive web and mobile apps that let patients find providers, verify insurance, compare credentials, and book appointments in just a few steps.
• Provider Scheduling & Practice Management: We develop clinician dashboards for calendar management, schedule buffering, cancellation backfills, and multi-location availability tracking.
• Automated Patient Intake & Engagement: We integrate SMS/email reminders, digital intake forms, and virtual waiting rooms to reduce no-shows and streamline patient check-ins.

B. Develop Intelligent Search, Matching and Booking

We transform raw provider directories into dynamic, AI-powered discovery engines that connect patients with the exact care they need.

• AI-Powered Symptom Search & Specialist Matching: We build NLP-driven search engines that interpret symptoms, medical conditions, and patient queries to recommend relevant specialists.
• Real-Time Appointment Availability: We engineer event-driven scheduling systems that synchronize provider calendars in real time, reducing latency and booking conflicts.
• Geolocation & Insurance Matching: We develop intelligent filters that match patients by location, insurance compatibility, doctor preferences, and verified ratings.

C. Integrate EHR, PMS and Healthcare APIs

We break down healthcare data silos by engineering deep, bi-directional interoperability bridges connecting your marketplace to existing clinical infrastructure.

• Practice Management System (PMS) Integration: We build secure API connectors to synchronize calendar availability, appointments, and patient records with Epic, Cerner, Athenahealth, Allscripts, and eClinicalWorks.
• SMART on FHIR & HL7 Integration: We develop SMART on FHIR and HL7 API gateways for secure, bi-directional exchange of clinical notes, patient demographics, and appointment data.
• Insurance Eligibility Verification APIs: We integrate real-time clearinghouse APIs, including Change Healthcare and Availity, to verify insurance eligibility, benefits, and copay obligations during booking.

D. Build and Scale Your Healthcare Marketplace Model

We engineer scalable cloud architecture and multi-rail monetization tools that support rapid network expansion across target regions.

• Flexible Marketplace Monetization: We build billing microservices supporting transaction fees, featured provider listings, subscription plans, and enterprise pricing models.
• HIPAA & GDPR-Compliant Cloud Infrastructure: We architect encrypted cloud systems that protect PHI, patient records, and backend services through secure storage, isolated runtimes, and enterprise-grade controls.
• Zero Vendor Lock-In Delivery: We deliver clean, fully documented, auditable source code, ensuring full platform ownership and long-term deployment flexibility.

Ready to launch a high-performance, enterprise-grade healthcare booking platform? Partner with Idea Usher’s principal healthtech and software architects to map out your custom product build today.

Conclusion

A strong healthcare marketplace needs more than online appointment booking. Zocdoc demonstrates how patient discovery, real-time availability, provider acquisition and performance-based monetization can work together within one scalable ecosystem. For enterprises, the opportunity lies in adapting this model to specific markets, specialties, or patient needs while maintaining secure integrations and seamless experiences. Understanding how Zocdoc makes money can help shape sustainable revenue strategies in the expanding digital health landscape.

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