title: Experience with historical control studies in cancer immunotherapy.
mesh_terms: D001500:BCG Vaccine / Q000627:therapeutic use; D001699:Biometry; D002986:Clinical Trials as Topic / Q000379:methods*; D006801:Humans; D007167:Immunotherapy; D009369:Neoplasms / Q000628:therapy*; D011897:Random Allocation; D013997:Time Factors
chemical_list: D001500:BCG Vaccine