1Department of Rheumatology and Bone Diseases, Edouard Herriot Hospital, Lyons, France
2Department of Rheumatology, Cochin Hospital, René Descartes University, Paris
3Endocrine Unit, Austin Hospital, University of Melbourne, Melbourne, Australia
4Center for Metabolic Bone Disease, Istituto Auxologico Italiano, Milan, Italy
5Center for Osteoporosis and Osteo-Articular Diseases, Bialystok, Poland
6Department of Rheumatology, St Thomas' Hospital, London
7Mineral and Bone Department, Central Hospital Asturias, Oviedo, Spain
8Department of Obstetrics and Gynecology, University of Debrecen, Medical and Health Sciences Center, Debrecen, Hungary
9Max Grundig Klinik, Innere Medizin–Rheumatology, Bühl, Germany
10Department of Clinical Physiology, Hillerød Hospital, Hillerød, Denmark
11Division of Bone Diseases, Department of Internal Medicine, University Hospital, Geneva
12Osteoporosis and Arthritis Group, University of California, San Francisco
13World Health Organization Collaborating Center for Public Health Aspects of Osteoarticular Disorders, Department of Epidemiology and Public Health, University of Liège, Liège, Belgium