RT Journal Article SR Electronic T1 Correction JF Journal of Medical Genetics JO J Med Genet FD BMJ Publishing Group Ltd SP 576 OP 576 DO 10.1136/jmg.2008.058701corr1 VO 46 IS 8 YR 2009 UL http://jmg.bmj.com/content/46/8/576.2.abstract AB