title: [Risk factors associated with central nervous system leukemia and its prophylaxis and treatment].
authors.forename: A
authors.initials: A
authors.lastname: Hiraoka
authors.forename: T
authors.initials: T
authors.lastname: Masaoka
mesh_terms: D000208:Acute Disease; D000293:Adolescent; D000328:Adult; D000368:Aged; D001932:Brain Neoplasms / Q000188:drug therapy / Q000453:epidemiology* / Q000517:prevention & control; D005260:Female; D006801:Humans; D007278:Injections, Spinal; D007938:Leukemia / Q000188:drug therapy / Q000453:epidemiology* / Q000517:prevention & control; D008297:Male; D008727:Methotrexate / Q000008:administration & dosage; D008875:Middle Aged; D012307:Risk Factors
chemical_list: D008727:Methotrexate