title: Extramedullary acute lymphoblastic leukaemia in childhood.
authors.affiliation: Oncohematología pediátrica, Hospital Infantil Niño Jesús, Madrid, Spain. jsevilla.hnjs@salud.madrid.org
authors.forename: Julián
authors.initials: J
authors.lastname: Sevilla
authors.forename: Miguel Angel
authors.initials: MA
authors.lastname: Díaz
authors.forename: Luis
authors.initials: L
authors.lastname: Madero
mesh_terms: D002648:Child; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D054198:Precursor Cell Lymphoblastic Leukemia-Lymphoma / Q000473:pathology*