1. Department of Human Genetics and Genomic Medicine; University of Southampton; Southampton UK
2. Signature Genomic Laboratories; PerkinElmer Inc.; Spokane Washington
3. Medical Genetics Institute; Cedars Sinai Medical Center; Los Angeles California
4. Wessex Clinical Genetics Service; University Hospital Southampton NHS Foundation Trust; Southampton UK
5. Wessex Regional Genetics Laboratory; Salisbury NHS Foundation Trust; Salisbury UK
6. Department of Medical Genetics; Rikshospitalet; Oslo University Hospital; Oslo Norway
7. Department of Clinical Genetics; Royal Devon and Exeter Hospital (Heavitree); Exeter UK
8. Division of Developmental Medicine and the Centre for Child Development; Vanderbilt University Medical Center; Nashville Tennessee
9. Center for Pediatric and Congenital Heart Disease; The Cleveland Clinic; Cleveland Ohio
10. Medical Genetics Department; Belfast Health and Social Care Trust; Belfast City Hospital; Belfast Northern Ireland
11. Northern Ireland Regional Genetics Centre; Belfast Health and Social Care Trust; Belfast City Hospital; Belfast Northern Ireland
12. Children's Hospital of New Orleans; New Orleans Louisiana
13. School of Medicine; University of California; Irvine California
14. Unique; Caterham UK