title: The controversial role of BCG in the treatment of squamous cell carcinoma of the head and neck.
mesh_terms: D001500:BCG Vaccine / Q000627:therapeutic use*; D002294:Carcinoma, Squamous Cell / Q000628:therapy*; D006258:Head and Neck Neoplasms / Q000628:therapy*; D006801:Humans; D007167:Immunotherapy
chemical_list: D001500:BCG Vaccine