title: Head and neck cancer. 3. Toxicity of 24-hour infusions of methotrexate (NSC-740) and protection by leucovorin (NSC-3590) in patients with epidermoid carcinomas.
mesh_terms: D000328:Adult; D000368:Aged; D002294:Carcinoma, Squamous Cell / Q000188:drug therapy*; D002986:Clinical Trials as Topic; D005260:Female; D006258:Head and Neck Neoplasms / Q000188:drug therapy*; D006801:Humans; D002955:Leucovorin / Q000627:therapeutic use*; D008297:Male; D008727:Methotrexate / Q000009:adverse effects*; D008875:Middle Aged; D009062:Mouth Neoplasms / Q000188:drug therapy*
chemical_list: D002955:Leucovorin; D008727:Methotrexate