1. Tohoku University School of Medicine, Sendai, Japan
2. Medical Governance Research Institute, Tokyo, Japan
3. Department of Internal Medicine, Soma Central Hospital, Soma, Japan
4. Department of Internal Medicine, Navitas Clinic Kawasaki, Kawasaki, Japan
5. Department of Social and Policy Sciences, University of Bath, Bath, UK
6. Department of Breast and Thyroid Surgery, Jyoban Hospital of Tokiwa Foundation, Iwaki, Japan