1. Department of Endocrinology and Metabolism, Concord Repatriation General Hospital, Faculty of Medicine, University of Sydney, Sydney, New South Wales, Australia.
2. Sacred Heart Rehabilitation Service, St. Vincent's Hospital, and Faculty of Medicine, University of New South Wales, Sydney, New South Wales, Australia.
3. Department of Geriatric Medicine, Gosford Hospital, Gosford, New South Wales, Australia.