title: [Evaluation of two methods of maintenance chemotherapy with methotrexate and 6-mercaptopurine for childhood acute lymphoblastic leukemia].
mesh_terms: D000971:Antineoplastic Combined Chemotherapy Protocols / Q000627:therapeutic use*; D002648:Child; D002986:Clinical Trials as Topic; D004334:Drug Administration Schedule; D005260:Female; D006801:Humans; D007945:Leukemia, Lymphoid / Q000188:drug therapy*; D008297:Male; D015122:Mercaptopurine / Q000008:administration & dosage*; D008727:Methotrexate / Q000008:administration & dosage*; D011239:Prednisolone / Q000008:administration & dosage; D011897:Random Allocation; D014750:Vincristine / Q000008:administration & dosage
chemical_list: D014750:Vincristine; D011239:Prednisolone; D015122:Mercaptopurine; D008727:Methotrexate