Department of Occupational Medicine;
Tao-Yuan General Hospital;
Tao-Yuan 330;
-Taiwan;
China;
Institute of Occupational Medicine and industrial Hygiene;
College of Public Health;
National Taiwan University;
No. 17;
Xu-Zhou Road;
Taipei 100;
Yaiwan;
China;
College of Public Health and Nutrition;
Taipei Medical University;
Taipei 110;
Taiwan;
China;