1. Division of Pharmacoepidemiology and Pharmacoeconomics; Brigham and Women's Hospital/Harvard Medical School; Boston MA USA
2. Division of Rheumatology, Immunology and Allergy; Brigham and Women's Hospital; Boston MA USA
3. Gynecologic Oncology; Dana-Farber Cancer Institute; Boston MA USA
4. Department of Population Medicine; Harvard Medical School and Harvard Pilgrim Health Care Institute; Boston MA USA
5. Department of Orthopedic Surgery; Brigham and Women's Hospital/Harvard Medical School; Boston MA USA