1. Department of Obstetrics and Gynecology, Dongguk University Ilsan Hospital, Dongguk University College of Medicine, Goyang, Korea.
2. Center for Uterine Cancer, Research Institute and Hospital, National Cancer Center, Goyang, Korea.
3. Department of Obstetrics and Gynecology, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea.
4. Department of Urology, Center for Prostate Cancer, National Cancer Center, Goyang, Korea.
5. Department of Pathology, Kyung Hee University School of Medicine, Seoul, Korea.