title: Methotrexate with thymidine protection or rescue in advanced head and neck cancer: a phase II study.
mesh_terms: D000328:Adult; D000368:Aged; D000971:Antineoplastic Combined Chemotherapy Protocols / Q000627:therapeutic use*; D001773:Blood Cells / Q000187:drug effects; D004064:Digestive System / Q000187:drug effects; D004341:Drug Evaluation; D005260:Female; D006258:Head and Neck Neoplasms / Q000188:drug therapy*; D006801:Humans; D008297:Male; D008727:Methotrexate / Q000008:administration & dosage / Q000009:adverse effects* / Q000097:blood; D008875:Middle Aged; D013936:Thymidine / Q000008:administration & dosage* / Q000097:blood
chemical_list: D013936:Thymidine; D008727:Methotrexate