RT Journal Article SR Electronic T1 The Howie report and the Howie code JF Journal of Clinical Pathology JO J Clin Pathol FD BMJ Publishing Group Ltd and Association of Clinical Pathologists SP 606 OP 606 DO 10.1136/jcp.36.5.606-b VO 36 IS 5 A1 JW Howie A1 CH Collins YR 1983 UL http://jcp.bmj.com/content/36/5/606.2.abstract AB