1. Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, University of Southern California, Los Angeles, CA, USA.
2. Norris Comprehensive Cancer Center, University of Southern California, Los Angeles, CA, USA.
3. Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, Magee-Womens Hospital, University of Pittsburgh, Pittsburgh, PA, USA.
4. Department of Obstetrics and Gynecology, Tokai University School of Medicine, Isehara, Japan.