RT Journal Article SR Electronic T1 Bone Marrow Pathology JF Journal of Clinical Pathology JO J Clin Pathol FD BMJ Publishing Group Ltd and Association of Clinical Pathologists SP 976 OP 976 DO 10.1136/jcp.46.10.976-c VO 46 IS 10 YR 1993 UL http://jcp.bmj.com/content/46/10/976.3.abstract AB