About the Authors

Tai-Ho Hung

thh20@adm.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

Szu-Fu Chen

Affiliation Department of Physical Medicine and Rehabilitation, Cheng Hsin Rehabilitation Medical Center, Taipei, Taiwan

Meng-Jen Li

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

Yi-Lin Yeh

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

T'sang-T'ang Hsieh

Affiliation Department of Obstetrics and Gynecology, 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 SFC. Performed the experiments: MJL YLY. Analyzed the data: THH MJL YLY. Contributed reagents/materials/analysis tools: THH TTH. Wrote the paper: THH SFC.