1. Department of Psychiatry and Institute for Women's Health, Virginia Commonwealth University, Richmond, Virginia, USA.
2. Department of Obstetrics and Gynecology, University of Virginia Health System, Charlottesville, Virginia, USA.
3. College of Nursing, University of Tennessee Health Science Center, Knoxville, Tennessee, USA.
4. Department of Obstetrics and Gynecology, and Medstar Georgetown University Hospital, Washington, District of Columbia, USA.
5. Department of Medicine, Medstar Georgetown University Hospital, Washington, District of Columbia, USA.
6. Department of Obstetrics and Gynecology, Case Western Reserve University, Cleveland, Ohio, USA.
7. Department of Internal Medicine and Institute for Women's Health, Virginia Commonwealth University, Richmond, Virginia, USA.