1. Medical Governance Research Institute Tokyo Japan
2. Tohoku University School of Medicine Sendai Japan
3. Department of Breast Surgery Jyoban Hospital of Tokiwa Foundation Iwaki Japan
4. Department of Gastroenterology Sendai Kousei Hospital Sendai Japan
5. Department of Surgery Jyoban Hospital of Tokiwa Foundation Iwaki Japan
6. Department of Internal Medicine Navitas Clinic Tokyo Japan