1. Department of Paediatric Endocrinology Evelina London Children’s Hospital London UK
2. King’s College London London UK
3. Viapath Genetics Laboratories Guy’s Hospital London UK
4. Wessex Clinical Genetics Service Princess Anne Hospital Southampton UK
5. Department of Paediatric Endocrinology Southampton General Hospital Southampton UK
6. Wessex Regional Genetics Laboratory Salisbury District Hospital Salisbury UK
7. Department of Clinical Genetics Guy’s Hospital London UK
8. Department of Paediatric Endocrinology King’s College Hospital London UK