1. Department of Endocrinology and Diabetes, Sir Charles Gairdner Hospital, Nedlands, WA, Australia
2. Harry Perkins Institute of Medical Research, Centre for Medical Research, QEII Medical Centre, University of Western Australia, Nedlands, WA, Australia
3. Medical School, University of Western Australia, Nedlands, WA, Australia
4. Department of General Medicine, Joondalup Health Campus, Ramsay Health, Joondalup, WA, Australia
5. School of Biomedical Sciences, University of Western Australia, Nedlands, WA, Australia
6. Department of Twin Research and Genetic Epidemiology, King’s College London, London, UK