title: The old grey mare, she ain't what she used to be. Is she?: (commentary on Kaspers et al., page 539).
authors.affiliation: Pediatric Oncology, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania 19003, USA. lange@email.chop.edu
authors.forename: Beverly
authors.initials: B
authors.lastname: Lange
mesh_terms: D002648:Child; D017322:Clinical Trials, Phase II as Topic; D019008:Drug Resistance, Neoplasm; D006801:Humans; D008727:Methotrexate / Q000008:administration & dosage / Q000627:therapeutic use*; D054198:Precursor Cell Lymphoblastic Leukemia-Lymphoma / Q000188:drug therapy*; D016032:Randomized Controlled Trials as Topic; D012008:Recurrence; D017211:Treatment Failure; D016896:Treatment Outcome
chemical_list: D008727:Methotrexate