Query: In what year were Medicaid and Medicare required to disclose information about their relationships with doctors and hospitals?
Context: In the US, starting in 2013, under the Physician Financial Transparency Reports (part of the Sunshine Act), the Centers for Medicare & Medicaid Services has to collect information from applicable manufacturers and group purchasing organizations in order to report information about their financial relationships with physicians and hospitals. Data are made public in the Centers for Medicare & Medicaid Services website.