title: [Studies on the initial features and prognosis in 21 infants with acute lymphoblastic leukemia. Children's Cancer and Leukemia Study Group].
mesh_terms: D005260:Female; D006801:Humans; D007223:Infant; D007945:Leukemia, Lymphoid / Q000175:diagnosis* / Q000188:drug therapy / Q000401:mortality; D008297:Male; D008727:Methotrexate / Q000008:administration & dosage; D011379:Prognosis
chemical_list: D008727:Methotrexate