1. Clinical Epidemiology Program, Division of Rheumatology, Allergy, and Immunology, Massachusetts General Hospital, Boston, Massachusetts; The Mongan Institute, Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts; Department of Medicine, Harvard Medical School, Boston, Massachusetts; and Arthritis Research Canada, Vancouver, British Columbia, Canada (N.M., H.K.C.)
2. Clinical Epidemiology Program, Division of Rheumatology, Allergy, and Immunology, Massachusetts General Hospital; The Mongan Institute, Department of Medicine, Massachusetts General Hospital; and Department of Medicine, Harvard Medical School, Boston, Massachusetts (C.Y., Y.Z.)
3. Health Management Center, Department of Orthopaedics, National Clinical Research Center of Geriatric Disorders, and Key Laboratory of Aging-related Bone and Joint Diseases Prevention and Treatment, Ministry of Education, Xiangya Hospital, and Department of Epidemiology and Health Statistics, Xiangya School of Public Health, Central South University, Changsha, China (J.W.)
4. Arthritis Research Canada, Vancouver, British Columbia, Canada (N.L.)
5. Department of Medicine, Harvard Medical School, and Diabetes Center, Massachusetts General Hospital, Boston, Massachusetts (D.J.W.)
6. Arthritis Research Canada, and Division of Rheumatology, Faculty of Medicine, The University of British Columbia, Vancouver, British Columbia, Canada (J.A.A.)
7. Arthritis Research Canada, and Faculty of Pharmaceutical Sciences, The University of British Columbia, Vancouver, British Columbia, Canada (M.A.D.V.).