RT Journal Article SR Electronic T1 Corrections JF Journal of Medical Genetics JO J Med Genet FD BMJ Publishing Group Ltd SP 668 OP 668 DO 10.1136/jmedgenet-2012-101159corr1 VO 49 IS 10 YR 2012 UL http://jmg.bmj.com/content/49/10/668.1.abstract AB