title: Guidelines, regulations, and clinical research.
mesh_terms: D000971:Antineoplastic Combined Chemotherapy Protocols / Q000627:therapeutic use; D002294:Carcinoma, Squamous Cell / Q000628:therapy*; D002986:Clinical Trials as Topic; D006258:Head and Neck Neoplasms / Q000628:therapy*; D006801:Humans; D011897:Random Allocation; D012107:Research Design