1. Medical Governance Research Institute Minato‐ku Tokyo Japan
2. Hamamatsu University School of Medicine Hamamatsu city Shizuoka Japan
3. Tohoku University School of Medicine Sendai City Miyagi Japan
4. Navitas Clinic Shinjuku Shinjuku‐ku Tokyo Japan
5. Department of Gastroenterology Sendai Kosei Hospital Sendai City Miyagi Japan
6. Department of Surgery Jyoban Hospital of Tokiwa Foundation Iwaki City Fukushima Japan
7. Department of Internal Medicine Navitas Clinic Tachikawa City Tokyo Japan
8. Department of Breast and Thyroid Surgery Jyoban Hospital of Tokiwa Foundation Iwaki City Fukushima Japan