1. Centre for Rare Diseases and Personalised Medicine (E.R., M.J., E.R.W., E.R.M.), School of Clinical and Experimental Medicine, College of Medical and Dental Sciences, University of Birmingham, Edgbaston, Birmingham B15 2TH, United Kingdom
2. West Midlands Regional Genetics Service (E.R., L.V., A.Y., H.B., K.M., T.R.C., E.R.W., F.M., Y.W., E.R.M.), Birmingham Women's Hospital NHS Trust, Edgbaston, Birmingham B15 2TG, United Kingdom
3. Northwest Thames Regional Genetics Service (N.C.), Northwick Park Hospital, Harrow, Middlesex HA1 3UJ, United Kingdom
4. Department of Endocrinology (J.D., M.K.), William Harvey Research Institute, Bart's and the London School of Medicine, Queen Mary University of London, London EC1M 6BQ, United Kingdom
5. Department of Clinical Genetics (S.V.H.), St George's Hospital, University of London, London SW17 0RE, United Kingdom
6. Department of ENT Surgery (R.I.), University Hospital Birmingham Foundation Trust, Edgbaston, Birmingham B15 2TH, United Kingdom
7. Department of Clinical Genetics (L.I.), Guy's and St Thomas' Foundation Trust, Guy's Hospital, London SE1 9RT, United Kingdom
8. Department of Clinical Genetics (A.V.K.), Great Ormond Street Foundation Trust, Great Ormond Street Hospital, London WC1N 3JN, United Kingdom
9. Genetic Medicine (F.L.), Central Manchester Hospitals NHS Foundation Trust, Manchester Academic Health Sciences Centre, Manchester M13 9WL, United Kingdom;
10. Department of Medical Genetics (P.J.M.), Queen's University Belfast, Belfast HSC Trust, Belfast BT9 7AB, United Kingdom