RT Journal Article SR Electronic T1 Drs Ali and Horton reply JF Journal of Clinical Pathology JO J Clin Pathol FD BMJ Publishing Group Ltd and Association of Clinical Pathologists SP 812 OP 812 DO 10.1136/jcp.39.7.812-a VO 39 IS 7 A1 Ali, MH A1 Horton, LWL YR 1986 UL http://jcp.bmj.com/content/39/7/812.1.abstract AB