1 Institute for Biomedical and Health Research (iUIBS), University of Las Palmas de Gran Canaria (ULPGC), Las Palmas de Gran Canaria, Spain.
2 Hospital for Sick Children, Toronto, Ontario, Canada.
3 Department of Endocrinology, Diabetes and Metabolic Diseases and University of Ljubljana Faculty of Medicine, University Children's Hospital, University Medical Centre Ljubljana, Ljubljana, Slovenia.
4 Department of Paediatrics, University of Cambridge and Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK.
5 Department of Pediatric Endocrinology, Rainbow Children's Hospital, Hyderabad, India.
6 Paediatric Endocrinology and Diabetes, John Hunter Children's Hospital, Newcastle, New South Wales, Australia.
7 School of Health Sciences, University of Newcastle, Newcastle, New South Wales, Australia.
8 Department of Pediatrics, Division of Pediatric Endocrinology and Diabetology, Riley Hospital for Children, Indiana University School of Medicine, Indianapolis, Indiana, USA.
9 Division of Endocrinology, Department of Pediatrics, Hospital for Sick Children, University of Toronto, Toronto, Ontario, Canada, farid.mahmud@sickkids.ca.