1. Department of Endocrinology and Diabetes, Royal Perth Hospital, Box X2213, GPO, Perth 6847, Western Australia, Australia
2. Department of Biochemistry, Royal Perth Hospital, Box X2213, GPO, Perth 6847, Western Australia, Australia
3. Department of Pathology, The University of Western Australia, Nedlands 6907, Western Australia, Australia
4. The University of Western Australia Department of Medicine, Royal Perth Hospital, Box X2213, GPO, Perth 6847, Western Australia, Australia
5. Department of Cardiology, Royal Perth Hospital, Box X2213, GPO, Perth 6847, Western Australia, Australia