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 718 OP 718 DO 10.1136/jmg.33.8.718-a VO 33 IS 8 A1 John C K Barber YR 1996 UL http://jmg.bmj.com/content/33/8/718.2.abstract AB