1Department of Medicine, School of Clinical Sciences, Monash University, Melbourne, Australia
2Department of Clinical Sciences, Lund University, Malmö, Sweden
3Department of Medicine, University of California, San Francisco, San Francisco CA, USA
4Department of Clinical Epidemiology, Cabrini Institute, and Department of Epidemiology and Preventive Medicine, School of Public Health and Preventative Medicine, Monash, Monash University, Melbourne, Australia
5Department of Human Metabolism, University of Sheffield, Sheffield, UK
6Veterans Affairs Medical Center, Geriatric Research Education and Clinical Center, and Department of Medicine, University of Minnesota, Minneapolis, MN, USA
7Department of Kinesiology and Schlegel Research Institute for Aging, University of Waterloo, Waterloo, Canada
8Department of Rheumatology, Hospital Clinic, University of Barcelona, Barcelona, Spain
9Department of Medicine, University of California, San Diego, San Diego CA, USA
10Mayo Clinic, Rochester, MN, USA
11Department of Physical Therapy and Rehabilitation Science, University of California, San Francisco, San Francisco CA, USA
12Division of Endocrinology, Mayo Clinic, Rochester, MN, USA
13Newport News, VA, USA
14Center for Advanced Orthopedic Studies, Beth Israel Deaconess Medical Center, Boston