title: Discrepancy of bone-marrow aspirations in acute lymphoblastic leukaemia in relapse.
mesh_terms: D001707:Biopsy, Needle; D001853:Bone Marrow / Q000473:pathology*; D001856:Bone Marrow Examination; D002648:Child; D005260:Female; D006801:Humans; D007945:Leukemia, Lymphoid / Q000473:pathology*