The clinical investigator as an endangered species.
D005257:Fellowships and Scholarships; D005380:Financing, Government; D006801:Humans; D010820:Physicians / Q000600:supply & distribution*; D012108:Research Personnel / Q000600:supply & distribution*; D012109:Research Support as Topic / Q000639:trends*; D014146:Training Support; D014481:United States