About the Authors

Yingqiang Wang

Affiliations The Chinese Cochrane Centre, West China Hospital, Sichuan University, Chengdu, China, Department of Medical Administration, 363 Hospital, Chengdu, China

Qianqian Luo

Affiliation National Chengdu Center for Safety Evaluation of Drugs, West China Hospital, Chengdu, China

Youping Li

yzmylab@hotmail.com

Affiliation The Chinese Cochrane Centre, West China Hospital, Sichuan University, Chengdu, China

Shaolin Deng

Affiliation West China Medical School, West China Hospital, Sichuan University, Chengdu, China

Shiyou Wei

Affiliation West China Medical School, West China Hospital, Sichuan University, Chengdu, China

Xianglian Li

Affiliation The Chinese Cochrane Centre, West China Hospital, Sichuan University, Chengdu, China

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: YQW YPL SD. Analyzed the data: YQW QQL YPL XLL SYW. Wrote the paper: YQW QQL YPL SLD XLL SYW.