About the Authors

Wu-Chien Chien

Affiliation Department of Public Health, National Defense Medical Center, No. 161, Section 6, Neihu District, Taipei City, Taiwan, Republic of China

Chi-Hsiang Chung

Affiliation Graduate Institute of Life Sciences, National Defense Medical Center, No. 161, Section 6, Neihu District, Taipei City, Taiwan, Republic of China

Jouni J. K. Jaakkola

Affiliation Center for Environmental and Respiratory Health Research, Institute of Health Sciences, University of Oulu, Oulu, Finland

Chi-Ming Chu

Affiliation Department of Public Health, National Defense Medical Center, No. 161, Section 6, Neihu District, Taipei City, Taiwan, Republic of China

Senyeong Kao

Affiliation Department of Public Health, National Defense Medical Center, No. 161, Section 6, Neihu District, Taipei City, Taiwan, Republic of China

Sui-Lung Su

Affiliation Department of Public Health, National Defense Medical Center, No. 161, Section 6, Neihu District, Taipei City, Taiwan, Republic of China

Ching-Huang Lai

lgh@mail.ndmctsgh.edu.tw

Affiliation Department of Public Health, National Defense Medical Center, No. 161, Section 6, Neihu District, Taipei City, Taiwan, Republic of China

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: CHL WCC. Analyzed the data: CHC CMC SLS. Wrote the paper: CHC CWC. Suggestions for revision of the manuscript: JJ SK.