1. Department of Medical Genetics (G.R.C., E.R.M.), University of Cambridge and National Institute for Health Research, Cambridge Biomedical Research Centre, Cambridge CB2 0QQ, United Kingdom
2. Medical Research Council (MRC) Cancer Unit (M.S., E.G., C.F.), University of Cambridge, Hutchison/MRC Research Centre, Cambridge CB2 0XZ, United Kingdom
3. Centre for Rare Diseases and Personalized Medicine (D.M.W., G.K., E.R.W.), University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom
4. West Midlands Regional Genetics Service (G.K., E.R.W.), Birmingham Women's Hospital, Birmingham B15 2TG, United Kingdom
5. Division of Genetics and Molecular Medicine (M.A.S., R.C.T.), King's College London School of Medicine, Guy's Hospital, London WC2R 2LS, United Kingdom
6. Department of Clinical Genetics (J.N.B.), University of Dundee, Ninewells Hospital and Medical School, Dundee DD1 9SY, United Kingdom
7. Department of Clinical Genetics (E.K.), Royal Hospital for Sick Children (Yorkhill), Glasgow G3 8SJ, United Kingdom
8. Department of Medical Genetics (P.J.M.), Queen's University Belfast, Belfast Health and Social Care Trust, Belfast BT9 7AB, United Kingdom