The quality of medical evidence: implications for quality of care.
Eddy
D M
DM
Billings
J
J
D003625:Data Collection / Q000592:standards; D010043:Outcome and Process Assessment, Health Care / Q000379:methods*; D010818:Practice Patterns, Physicians' / Q000592:standards*; D011785:Quality Assurance, Health Care; D012107:Research Design