RT Journal Article SR Electronic T1 Retraction JF Journal of Clinical Pathology JO J Clin Pathol FD BMJ Publishing Group Ltd and Association of Clinical Pathologists SP 92 OP 92 DO 10.1136/jcp.2006.045682retr VO 63 IS 1 YR 2010 UL http://jcp.bmj.com/content/63/1/92.abstract AB