1. Department of Radiation Oncology; Osaka University Graduate School of Medicine; Suita Osaka
2. Japan Radioisotope Association; Tokyo
3. Department of Radiation Oncology; Saitama Medical University; Saitama
4. Department of Uro-oncology; Saitama Medical University; Saitama
5. Department of Medical Physics and Engineering; Osaka University Graduate School of Medicine; Osaka
6. Department of Radiation Oncology; Nippon Medical School, Tamanagayama Hospital; Tokyo
7. Department of Radiation Oncology; Cancer Institute Hospital, the Japanese Foundation for Cancer Research; Tokyo Japan