1. Department of Palliative Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
2. Department of Urology, Koto Hospital, Tokyo, Japan
3. Department of Urology, The Jikei University School of Medicine, Tokyo, Japan
4. Department of Radiology, Koto Hospital, Tokyo, Japan
5. Department of Orthopedic Surgery, Koto Hospital, Tokyo, Japan