Presidential remarks--towards a redefinition of clinical research.
Schwartz
J S
JS
Leonard Davis Institute of Health Economics, Philadelphia, PA 19104.
D009316:National Institutes of Health (U.S.) / Q000191:economics; D012106:Research / Q000639:trends; D012109:Research Support as Topic / Q000191:economics; D012958:Societies, Scientific; D014481:United States