1. Medical Governance Research Institute Minato‐ku Tokyo Japan
2. Department of Breast Surgery Jyoban Hospital of Tokiwa Foundation Iwaki Fukushima Japan
3. Department of Gastroenterology Sendai Kousei Hospital Sendai Miyagi Japan
4. Department of Surgery Jyoban Hospital of Tokiwa Foundation Iwaki Fukushima Japan
5. Department of Internal Medicine Navitas Clinic Kawasaki Kawasaki Kanagawa Japan