Head and neck neoplasms: outpatient chemotherapy.
D000553:Ambulatory Care; D006258:Head and Neck Neoplasms / Q000188:drug therapy*; D006801:Humans; D006918:Hydroxyurea / Q000627:therapeutic use; D008727:Methotrexate / Q000627:therapeutic use*
D006918:Hydroxyurea; D008727:Methotrexate