1. Division of Social Communication System for Advanced Clinical Research, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan
2. Division of Social Communication System for Advanced Clinical Research, The Institute of Medical Science, The University of Tokyo; Division of the Strategic Outcome Research Program for Cancer Control, Ministry of Health, Labour and Welfare Commission, Japan Cancer Society, Tokyo, Japan
3. Ministry of Health, Labour and Welfare, Aide of the Minister, Health Sector Reform Office, Tokyo, Japan