title: F.A.B. morphological classification of acute lymphoblastic leukemia in children.
mesh_terms: D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D007945:Leukemia, Lymphoid / Q000145:classification*; D008297:Male; D011379:Prognosis