title: Most PHOs still show low enrollment, too many physicians, survey finds.
mesh_terms: D003625:Data Collection; D006075:Governing Board; D006759:Hospital-Physician Joint Ventures / Q000458:organization & administration / Q000706:statistics & numerical data*; D010067:Ownership / Q000706:statistics & numerical data; D010820:Physicians / Q000600:supply & distribution; D014481:United States