title: [Ultrastructure of marrow cells in preleukemia].
mesh_terms: D001853:Bone Marrow / Q000648:ultrastructure*; D004912:Erythrocytes / Q000648:ultrastructure; D006098:Granulocytes / Q000648:ultrastructure; D006801:Humans; D008533:Megakaryocytes / Q000648:ultrastructure; D011289:Preleukemia / Q000648:ultrastructure*