title: Five years into the National Cancer Program: retrospective perspectives--the National Cancer Act of 1971.
mesh_terms: D002274:Carcinogens, Environmental / Q000506:poisoning; D049673:History, 20th Century; D006801:Humans; D007883:Legislation, Medical / Q000266:history; D009316:National Institutes of Health (U.S.) / Q000266:history*; D009369:Neoplasms / Q000175:diagnosis / Q000209:etiology / Q000517:prevention & control / Q000628:therapy; D012106:Research / Q000266:history; D012109:Research Support as Topic; D014146:Training Support; D014481:United States
chemical_list: D002274:Carcinogens, Environmental