doi: 10.1111/dme.14675. Online ahead of print. 1 Department of Endocrinology and Diabetes, Princess Margaret Hospital for Children, Perth, Western Australia, Australia. 2 Telethon Kids Institute, University of Western Australia, Perth, Western Australia, Australia. 3 Department of Paediatric Endocrinology and Diabetes, John Hunter Children's Hospital, Newcastle, New South Wales, Australia.