1 Medical Governance Research Institute, Minato-ku, Tokyo, Japan; Tohoku University School of Medicine, Sendai, Miyagi, Japan. Electronic address: [email protected].
2 Medical Governance Research Institute, Minato-ku, Tokyo, Japan; Hamamatsu University School of Medicine, Hamamatsu, Shizuoka, Japan.
3 Medical Governance Research Institute, Minato-ku, Tokyo, Japan; Department of Gastroenterology, Sendai Kousei Hospital, Sendai, Miyagi, Japan.
4 Medical Governance Research Institute, Minato-ku, Tokyo, Japan; Department of Internal Medicine, Navitas Clinic Tachikawa, Tachikawa, Tokyo, Japan.
5 Medical Governance Research Institute, Minato-ku, Tokyo, Japan; Department of Breast and Thyroid Surgery, Jyoban Hospital, Iwaki, Fukushima, Japan.