1. Department of Paediatric Endocrinology Great Ormond Street Hospital for Children NHS Foundation Trust London UK
2. Department of Developmental Endocrinology Research Group, Clinical and Molecular Genetics Unit, Institute of Child Health University College London London UK
3. Department of Paediatric Endocrinology Hospital Infantil Universitario Niño Jesús Madrid Spain
4. Division of Paediatric Endocrinology and Diabetes, Department of Paediatrics, School of Medicine University of Patras Patras Greece
5. Department of Paediatric Endocrinology Royal Hospital Muscat Oman
6. Department of Paediatric Endocrine, Centre for Endocrinology, The Royal London Children's Hospital, Barts Health NHS Trust Queen Mary University of London London UK