title: Intramural research pioneers, personalities, and programs: the early years.
mesh_terms: D000818:Animals; D049673:History, 20th Century; D006801:Humans; D009316:National Institutes of Health (U.S.) / Q000266:history*; D009369:Neoplasms / Q000188:drug therapy / Q000266:history* / Q000378:metabolism / Q000473:pathology / Q000503:physiopathology; D009374:Neoplasms, Experimental / Q000209:etiology / Q000266:history; D012106:Research / Q000266:history; D014481:United States