1. Department of Surgery 1, School of Medicine University of Occupational and Environmental Health Kitakyushu Japan
2. Occupational Health Data Science Centre University of Occupational and Environmental Health Kitakyushu Japan
3. Department of Preventive Medicine and Community Health, School of Medicine University of Occupational and Environmental Health Kitakyushu Japan
4. Department of Health Informatics and Policy, Graduate School of Medicine Tokyo Medical and Dental University Tokyo Japan