title: Morphological shift at relapse in acute lymphoblastic leukemia.
mesh_terms: D000293:Adolescent; D000328:Adult; D001853:Bone Marrow / Q000473:pathology; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007223:Infant; D007945:Leukemia, Lymphoid / Q000473:pathology*; D008214:Lymphocytes / Q000473:pathology*; D008297:Male; D008875:Middle Aged; D012008:Recurrence