title: Two unexpected courses in four children with lymphoblastic leukemia of B-cell type (B-ALL).
mesh_terms: D000293:Adolescent; D000950:Antigens, Ly / Q000276:immunology; D000971:Antineoplastic Combined Chemotherapy Protocols / Q000627:therapeutic use*; D001402:B-Lymphocytes / Q000276:immunology; D002648:Child; D002675:Child, Preschool; D003131:Combined Modality Therapy; D006801:Humans; D007945:Leukemia, Lymphoid / Q000188:drug therapy / Q000401:mortality*; D008297:Male; D008577:Meningeal Neoplasms / Q000517:prevention & control; D012074:Remission Induction
chemical_list: D000950:Antigens, Ly