1. Department of Respiratory Medicine University of Occupational and Environmental Health, Japan Kitakyushu Japan
2. Department of Respiratory Medicine Nagasaki University Graduate School of Biomedical Sciences Nagasaki Japan
3. Information Systems Center University of Occupational and Environmental Health, Japan Kitakyushu Japan
4. Department of Environmental Epidemiology University of Occupational and Environmental Health, Japan Kitakyushu Japan
5. Department of Preventive Medicine and Community Health University of Occupational and Environmental Health, Japan Kitakyushu Japan
6. Department of Health Policy and Informatics Tokyo Medical and Dental University Tokyo Japan