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