1. Department of Endocrinology
2. Canterbury Health Laboratories, University of Otago Christchurch School of Medicine and Christchurch Hospital, Private Bag 4710, Christchurch, New Zealand
3. Aspen Medical, RAMSI Medical Facility, PO Box 1597, Honiara, Solomon Islands
4. Medical Treatment Centre, Burnham Military Camp, Private Bag 4720, Burnham, New Zealand