1. Department of Endocrinology and Diabetes, Sir Charles Gairdner Hospital, Perth, WA.
2. Department of Clinical Biochemistry, PathWest QEII Laboratory, Perth, WA.
3. Department of Biochemistry and Cytogenetics, Western Diagnostic Pathology, Perth, WA.
4. School of Medicine and Pharmacology, University of Western Australia, Perth, WA.
5. Keogh Institute for Medical Research, Perth, WA.