1Nuffield Dept. of Surgical Sciences & Nuffield Dept. of Orthopaedics, Rheumatology & Musculoskeletal Sciences, University of Oxford, Botnar Research Centre, Oxford, UK
2Division of Endocrinology, Diabetes, Metabolism and Nutrition & Robert and Arlene Kogod Center on Aging, Mayo Clinic College of Medicine, Rochester, MN, USA