title: Unusual inclusions occurring in the blasts of four patients with acute leukemia and Down's syndrome.
mesh_terms: D001853:Bone Marrow / Q000648:ultrastructure; D001854:Bone Marrow Cells; D001856:Bone Marrow Examination; D002675:Child, Preschool; D004314:Down Syndrome / Q000150:complications / Q000473:pathology*; D006412:Hematopoietic Stem Cells / Q000648:ultrastructure; D006801:Humans; D002479:Inclusion Bodies; D007231:Infant, Newborn; D007945:Leukemia, Lymphoid / Q000209:etiology / Q000473:pathology*; D015470:Leukemia, Myeloid, Acute / Q000209:etiology / Q000473:pathology*; D008854:Microscopy, Electron; D013194:Staining and Labeling