1. Cancer Epidemiology Research Unit, Cancer Council New South Wales, Kings Cross, Australia.
2. Endocrine Surgical Unit, University of Sydney, Sydney, Australia.
3. Northern Endocrine and Breast Surgery Centre, St. Leonards, Australia.
4. Westmead Hospital, Westmead, Australia.
5. Clinical Education and Training Institute, Sydney, Australia.
6. Head, Breast, and Endocrine Department, Royal Brisbane and Women's Hospital, University of Queensland, Brisbane, Australia.