1. Center for Environmental Information Science, Tokyo, Japan
2. National Institute for Environmental Studies, Tsukuba, Japan
3. Busan St. Mary's Hospital, Busan, South Korea
4. National Hospital Organization Fukuoka Hospital, Fukuoka, Japan
5. Hiroshima City Asa Hospital, Hiroshima, Japan
6. University of Occupational and Environmental Health, Kitakyusyu, Japan