title: Combined therapy in advanced head and neck cancer: hydroxyurea and radiotherapy.
mesh_terms: D006258:Head and Neck Neoplasms / Q000188:drug therapy / Q000532:radiotherapy / Q000628:therapy*; D006801:Humans; D006918:Hydroxyurea / Q000009:adverse effects / Q000627:therapeutic use*; D010865:Pilot Projects; D011878:Radiotherapy / Q000009:adverse effects
chemical_list: D006918:Hydroxyurea