1. Department of Surgery Memorial Sloan Kettering Cancer Center New York New York
2. Department of Obstetrics and Gynecology Olive View–UCLA Medical Center Sylmar California
3. Department of Obstetrics and Gynecology David Geffen School of Medicine University of California at Los Angeles Los Angeles California
4. Department of Obstetrics and Gynecology Kaiser Permanente Panorama City Panorama City California