1. Department of Surgical Pathology, Tokyo Women's Medical College, Tokyo, Japan
2. Department of Surgical Pathology, Keio University School of Medicine, Tokyo, Japan
3. Department of Endocrine Surgery, Tokyo Women's Medical College, Tokyo, Japan
4. Department of Surgery II, Tokyo Women's Medical College, Tokyo, Japan
5. Department of Urology, Keio University School of Medicine, Tokyo, Japan
6. Internal Medicine, Keio University School of Medicine, Tokyo, Japan
7. Department of Internal Medicine, Tokyo Women's Medical College, Tokyo, Japan