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 656 OP 656 DO 10.1136/jmg.31.8.656-c VO 31 IS 8 A1 Clayton-Smith, Jill YR 1994 UL http://jmg.bmj.com/content/31/8/656.4.abstract AB