title: First results of a randomized trial on immunotherapy of head and neck tumors.
mesh_terms: D001500:BCG Vaccine / Q000627:therapeutic use; D006258:Head and Neck Neoplasms / Q000601:surgery / Q000628:therapy*; D006801:Humans; D009364:Neoplasm Recurrence, Local; D011897:Random Allocation
chemical_list: D001500:BCG Vaccine