RT Journal Article SR Electronic T1 Book reviews JF Journal of Medical Genetics JO J Med Genet FD BMJ Publishing Group Ltd SP 72 OP 72 DO 10.1136/jmg.29.1.72 VO 29 IS 1 A1 Young, I D YR 1992 UL http://jmg.bmj.com/content/29/1/72.1.abstract AB