1. Department of Epidemiology, Harvard School of Public Health, Boston, Massachusetts.
2. Connors Center for Women's Health and Gender Biology, Division of Women's Health, Brigham and Women's Hospital, Boston, Massachusetts.
3. Women's Heart Center, Cedars-Sinai Heart Institute, Los Angeles, California.
4. Department of Obstetrics and Gynecology, Wake Forest School of Medicine, Winston-Salem, North Carolina.
5. Departments of Surgery and Physiology and Biomedical Engineering, Mayo Clinic, Rochester, Minnesota.
6. Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland.
7. Departments of Psychiatry & Behavioral Neurosciences and Obstetrics & Gynecology, McMaster University, Hamilton, Ontario, Canada.
8. Emory Heart and Vascular Center, Emory University School of Medicine, Atlanta, Georgia.