RT Journal Article SR Electronic T1 Medical genetics: advances in brief JF Journal of Medical Genetics JO J Med Genet FD BMJ Publishing Group Ltd SP 85 OP 85 DO 10.1136/jmg.30.1.85-c VO 30 IS 1 A1 John C K Barber YR 1993 UL http://jmg.bmj.com/content/30/1/85.4.abstract AB