Global Healthcare BPO Market Size study, by Payer Services (Claims Management, Integrated Front-end Services and Back-office Operations, Member Management, Product Development and Business Acquisition (PDBA), Provider Management, Care Management, HR Services, Billing & Accounts Management Services), by Provider Services (Revenue Cycle Management, Patient Enrolment & Strategic Planning, Patient Care), by Pharmaceutical Service (Manufacturing Services, R&D Services, Non-clinical Services) and Regi