title: Late reinforcement of maintenance therapy in children with acute lymphoblastic leukemia.
mesh_terms: D002648:Child; D003561:Cytarabine / Q000008:administration & dosage*; D006801:Humans; D007945:Leukemia, Lymphoid / Q000188:drug therapy*; D013866:Thioguanine / Q000008:administration & dosage*
chemical_list: D003561:Cytarabine; D013866:Thioguanine