title: Letter: Allopurinol and cytotoxic agents.
mesh_terms: D000493:Allopurinol / Q000008:administration & dosage* / Q000627:therapeutic use; D000970:Antineoplastic Agents / Q000008:administration & dosage* / Q000627:therapeutic use; D001853:Bone Marrow / Q000187:drug effects; D004357:Drug Synergism; D007970:Leukopenia / Q000139:chemically induced; D013921:Thrombocytopenia / Q000139:chemically induced
chemical_list: D000970:Antineoplastic Agents; D000493:Allopurinol