1. Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, University of Southern California, Los Angeles, CA, USA.
2. Department of Obstetrics and Gynecology, Osaka University Graduate School of Medicine, Osaka, Japan.
3. Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, University of Southern California, Los Angeles, CA, USA.
4. Norris Comprehensive Cancer Center, University of Southern California, Los Angeles, CA, USA.