RT Journal Article SR Electronic T1 Correction JF Journal of Clinical Pathology JO J Clin Pathol FD BMJ Publishing Group Ltd and Association of Clinical Pathologists SP 577 OP 577 DO 10.1136/jclinpath-2014-202715corr2 VO 68 IS 7 YR 2015 UL http://jcp.bmj.com/content/68/7/577.abstract AB