1. Department of Medical Oncology, National Cancer Center Hospital, Tokyo, Japan.
2. Department of Diagnostic Pathology, National Cancer Center Hospital, Tokyo, Japan.
3. Department of Diagnostic Pathology, Saitama Medical University International Medical Center, Hidaka, Japan.
4. Department of Gynecology, National Cancer Center Hospital, Tokyo, Japan.
5. Department of Gynecologic Oncology, Saitama Medical University International Medical Center, Hidaka, Japan.