RT Journal Article SR Electronic T1 Human Molecular Genetics JF Journal of Medical Genetics JO J Med Genet FD BMJ Publishing Group Ltd SP 176 OP 176 DO 10.1136/jmg.34.2.176-b VO 34 IS 2 A1 Dorothy Trump YR 1997 UL http://jmg.bmj.com/content/34/2/176.3.abstract AB