RT Journal Article SR Electronic T1 Clot JF Journal of Clinical Pathology JO J Clin Pathol FD BMJ Publishing Group Ltd and Association of Clinical Pathologists SP 295 OP 295 DO 10.1136/jcp.30.3.295-c VO 30 IS 3 A1 Bloom, A. L. YR 1977 UL http://jcp.bmj.com/content/30/3/295.3.abstract AB