RT Journal Article SR Electronic T1 Endocrine Genetics and Genetics of Growth JF Journal of Medical Genetics JO J Med Genet FD BMJ Publishing Group Ltd SP 254 OP 255 DO 10.1136/jmg.24.4.254-a VO 24 IS 4 A1 Hughes, I A YR 1987 UL http://jmg.bmj.com/content/24/4/254.2.abstract AB