title: Distribution of Philadelphia positive acute lymphoblastic leukemia: geographical heterogeneity or age related incidence?
authors.forename: L M
authors.initials: LM
authors.lastname: Secker-Walker
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D002648:Child; D006801:Humans; D015994:Incidence; D008875:Middle Aged; D010677:Philadelphia Chromosome; D054198:Precursor Cell Lymphoblastic Leukemia-Lymphoma / Q000453:epidemiology*