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. Department of Obstetrics and Gynecology, Tokai University School of Medicine, Isehara, Japan.
4. Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, University of Southern California, Los Angeles, CA, USA.
5. Department of Gynecologic Oncology and Reproductive Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.