About the Authors

Jung-Nien Lai

Affiliations Institute of Traditional Medicine, School of Medicine, National Yang-Ming University, Taipei, Taiwan, Department of Obstetrics and Gynecology, Yangming Branch, Taipei City Hospital, Taipei, Taiwan

Chien-Tung Wu

Affiliation Department of Chinese Medicine, Taipei City Hospital, Taipei, Taiwan

Pau-Chung Chen

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

Chiun-Sheng Huang

Affiliations Department of Surgery, College of Medicine, National Taiwan University, Taipei, Taiwan, Department of Surgery, National Taiwan University Hospital, Taipei, Taiwan

Song-Nan Chow

Affiliation Department of Obstetrics & Gynecology, National Taiwan University Hospital, Taipei, Taiwan

Jung-Der Wang

jdwang121@gmail.com

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

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Study concept and design: J-NL C-SH S-NC J-DW. Acquisition of data: J-NL C-TW. Analysis and interpretation of data: J-NL C-TW J-DW. Drafting of the manuscript: J-NL J-DW. Critical revision of the manuscript for important intellectual content: J-NL C-SH S-NC J-DW. Statistical expertise: P-CC. Obtained funding: J-DW. Administrative technical or material support: J-DW.