Intrathecal methotrexate.
D002648:Child; D005260:Female; D006801:Humans; D007278:Injections, Spinal; D007945:Leukemia, Lymphoid / Q000188:drug therapy*; D008297:Male; D008727:Methotrexate / Q000008:administration & dosage*
D008727:Methotrexate