1. Department of Medical Genetics Cambridge Institute for Medical Research University of Cambridge Cambridge CB2 0XY United Kingdom
2. The Wellcome Trust Sanger Institute Wellcome Trust Genome Campus Hinxton Cambridge CB10 1SA United Kingdom
3. Department of Haematology University of Cambridge Cambridge CB2 0PT United Kingdom
4. East Anglian Medical Genetics Service Addenbrooke's Hospital Cambridge CB2 0QQ United Kingdom
5. Molecular Genetics Laboratory Genetics Service Cruces University Hospital BioCruces Health Research Institute Barakaldo‐Bizkaia 48903 Spain
6. Centre for Biomedical Research on Rare Diseases (CIBERER) Madrid 28029 Spain
7. Department of Paediatrics and Robinson Research Institute The University of Adelaide Adelaide South Australia 5006 Australia
8. SA Pathology Women's and Children's Hospital Adelaide South Australia 5006 Australia
9. Genetics of Learning Disability Service Hunter Genetics Waratah New South Wales 2298 Australia
10. Medical Genetics University of Siena Siena 53100 Italy
11. Genetica Medica Azienda Ospedaliera Universitaria Senese Siena 53100 Italy
12. Greenwood Genetic Center Greenwood, South Carolina 29646
13. The Genome Centre John Vane Science Centre Queen Mary University of London Charterhouse Square London EC1M 6BQ United Kingdom
14. Department of Cardiovascular Medicine University of Oxford Wellcome Trust Centre for Human Genetics Oxford OX3 7BN United Kingdom
15. Cardiovascular Research Group Institute of Cardiovascular Sciences University of Manchester Manchester M13 9NT United Kingdom