The need for chemotherapy after prolonged complete remission in acute leukemia of childhood.
D000208:Acute Disease; D001856:Bone Marrow Examination; D002648:Child; D003520:Cyclophosphamide / Q000627:therapeutic use; D006801:Humans; D007938:Leukemia / Q000188:drug therapy*; D015122:Mercaptopurine / Q000627:therapeutic use; D008727:Methotrexate / Q000627:therapeutic use; D011241:Prednisone / Q000627:therapeutic use
D003520:Cyclophosphamide; D015122:Mercaptopurine; D011241:Prednisone; D008727:Methotrexate