Department of Hygiene;
Kawasaki Medical School;
577 Mastushima;
Kurashiki 701-0192;
Japan;
Department of Occupational and Environmental Health Science;
School of Public Health;
School of Public Health;
Peking University Health Science Center;
Bejing 100191;
China;
Department of Occupational Diseases;
Zhejiang Academy of Medical Sciences;
Hangzhou 310013;
Zhejiang;
China;
Department of Biophysical Chemistry;
Graduate School of Medicine;
Dentistry and Pharmaceutical Sciences;
Okayama University;
1-1-1 Tsushimanaka;
Kita-Ku;
Okayama 700-8530;
Japan;