1. Department of Obstetrics and Gynecology Walter Reed National Military Medical Center Bethesda Maryland
2. Department of Orthopaedic Surgery Walter Reed National Military Medical Center Bethesda Maryland
3. Department of Obstetrics and Gynecology Howard University Hospital Washington District of Columbia
4. Henry M. Jackson Foundation for the Advancement of Military Medicine Bethesda Maryland
5. Uniformed Services University of the Health Sciences Bethesda Maryland