1. Department of Geriatric Medicine, Prince of Wales Hospital, Sydney, Sydney, New South Wales, Australia,
2. University of Otago, Christchurch, New Zealand
3. Unit of Geriatrics and Metabolic Bone Diseases, Molinette Hospital, “AOU Città della Salute e della Scienza” of Torino;, Torino, Italy,
4. Universtiry of Leicester, Leicester, United Kingdom,