1. Department of Obstetrics and Gynecology, Research Institute of Medical Science, Konkuk University School of Medicine, Seoul, Korea.
2. Center for Gynecologic Cancer and Center for Clinical Trial, National Cancer Center, Goyang, Korea.
3. Division of Tumor Immunology, Research Institute and Hospital, National Cancer Center, Goyang, Korea.
4. Department of Cancer Control and Population Health, Graduate School of Cancer Science and Policy, National Cancer Center, Goyang, Korea.
5. Division of Cancer Registration and Surveillance, National Cancer Control Institute, National Cancer Center, Goyang, Korea.
6. Department of Obstetrics and Gynecology, Pusan National University Yangsan Hospital, Korea.
7. Department of Obstetrics and Gynecology, Korea University Ansan Hospital, Ansan, Korea.