1. Endocrine Research Group; Institute of Genetic Medicine; University of Newcastle-upon-Tyne; Newcastle-upon-Tyne UK
2. Department of Endocrinology; Newcastle-upon-Tyne Hospitals; Newcastle-upon-Tyne UK
3. Section of Investigative Medicine; Faculty of Medicine; Hammersmith Hospital; Imperial College London; London UK
4. Université Paris Sud - IDEX Univ PARIS SACLAY; Assistance Publique-Hôpitaux de Paris; INSERM U1185 Service d'Endocrinologie Adultes; Hôpital Bicêtre; Hôpitaux Universitaires Paris Sud; Paris France
5. Centre for Endocrinology; William Harvey Research Institute; Barts and the London School of Medicine and Dentistry; Queen Mary University of London; London Uk
6. Department of Paediatric Endocrinology; Newcastle-upon-Tyne Hospitals; Newcastle-upon-Tyne UK
7. Newcastle Upon Tyne Hospitals NHS Foundation Trust; Newcastle Upon Tyne UK
8. Institute of Higher Education & Research in Healthcare; University of Lausanne; Switzerland
9. Endocrinology; Diabetes & Metabolism Service; Centre Hospitalier Universitaire Vaudois; Lausanne Switzerland