title: Unproven methods of cancer management part I: background and historical perspectives.
mesh_terms: D000529:Complementary Therapies / Q000266:history; D003406:Credentialing; D049671:History, 18th Century; D049672:History, 19th Century; D049673:History, 20th Century; D006801:Humans; D009369:Neoplasms / Q000517:prevention & control / Q000628:therapy*; D011781:Quackery / Q000266:history; D014481:United States