1. Division of Women’s Health, Brigham and Women’s Hospital, Boston, Massachusetts
2. Department of Medicine, Harvard Medical School, Boston, Massachusetts
3. Clinical Laboratory and Nutritional Sciences, University of Massachusetts Lowell, Lowell, Massachusetts
4. Division of Cardiovascular Medicine, Stanford University, Palo Alto, California
5. Division of General Internal Medicine, Massachusetts General Hospital, Boston, Massachusetts
6. Division of Hospital Medicine, University of California San Francisco, San Francisco, California