About the Authors

Tai-Ho Hung

thh20@cgmh.org.tw

Affiliations Department of Obstetrics and Gynecology, Chang Gung Memorial Hospital at Taipei, Taipei, Taiwan, Department of Chinese Medicine, College of Medicine, Chang Gung University, Taoyuan, Taiwan

T’sang-T’ang Hsieh

Affiliation Department of Obstetrics and Gynecology, Chang Gung Memorial Hospital at Taipei, Taipei, Taiwan

Hung-Pin Liu

Affiliation Department of Anesthesiology, Chang Gung Memorial Hospital at Taipei, Taipei, Taiwan

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: THH TTH. Analyzed the data: THH. Wrote the paper: THH HPL.