title: Historical note: Roscoe Roy Spencer (1888-1982).
mesh_terms: D049673:History, 20th Century; D006801:Humans; D009316:National Institutes of Health (U.S.) / Q000266:history; D009369:Neoplasms / Q000266:history; D012373:Rocky Mountain Spotted Fever / Q000266:history; D014481:United States