RT Journal Article SR Electronic T1 Elements of Medical Genetics JF Journal of Clinical Pathology JO J Clin Pathol FD BMJ Publishing Group Ltd and Association of Clinical Pathologists SP 828 OP 828 DO 10.1136/jcp.23.9.828-a VO 23 IS 9 A1 M. D'A. Crawfurd YR 1970 UL http://jcp.bmj.com/content/23/9/828.1.abstract AB