OTA report exposes weaknesses of federal research on medical effectiveness.
D002986:Clinical Trials as Topic / Q000592:standards; D003362:Cost-Benefit Analysis; D006801:Humans; D007348:Insurance, Health / Q000191:economics; D012106:Research / Q000592:standards*; D012107:Research Design; D014481:United States; D014491:United States Office of Technology Assessment