About the Authors

Chang-Hsing Lee

Affiliations Institute of Occupational Medicine and Industrial Hygiene, National Taiwan University College of Public Health, Taipei, Taiwan, Department of Occupational Medicine, Ton Yen General Hospital, Hsin-Chu, Taiwan

Jung-Der Wang

Affiliations Institute of Occupational Medicine and Industrial Hygiene, National Taiwan University College of Public Health, Taipei, Taiwan, Department of Public Health, National Cheng Kung University College of Medicine, Tainan, Taiwan, Department of Environmental and Occupational Medicine, National Taiwan University Hospital, Taipei, Taiwan

Pau-Chung Chen

pchen@ntu.edu.tw

Affiliation Institute of Occupational Medicine and Industrial Hygiene, National Taiwan University College of Public Health, Taipei, Taiwan

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: PCC JDW CHL. Performed the experiments: CHL. Analyzed the data: CHL. Contributed reagents/materials/analysis tools: CHL. Wrote the paper: PCC JDW CHL.