About the Authors

Chengxiang Lu

Affiliation Department of Anesthesiology, First Municipal People’s Hospital of Guangzhou, an Affiliate Hospital of Guangzhou Medical College, Guangzhou, China

Li-Ming Zhang

Affiliation University of Pittsburgh Medical Centre, Pittsburgh, Pennsylvania, United States of America

Yuehong Zhang

Affiliation Department of Ophthalmology, First Municipal People’s Hospital of Guangzhou, an Affiliate Hospital of Guangzhou Medical College, Guangzhou, China

Yanlu Ying

Affiliation Department of Anesthesiology, First Municipal People’s Hospital of Guangzhou, an Affiliate Hospital of Guangzhou Medical College, Guangzhou, China

Ling Li

Affiliation Department of Medical Infomation, First Municipal People’s Hospital of Guangzhou, an Affiliate Hospital of Guangzhou Medical College, Guangzhou, China

Lixin Xu

Affiliation Department of Anesthesiology, First Municipal People’s Hospital of Guangzhou, an Affiliate Hospital of Guangzhou Medical College, Guangzhou, China

Xiangcai Ruan

xc_ruan@hotmail.com; xc_ruan@gzhmu.edu.cn

Affiliation Department of Anesthesiology, First Municipal People’s Hospital of Guangzhou, an Affiliate Hospital of Guangzhou Medical College, Guangzhou, China

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: CL LZ YZ LX XR. Performed the experiments: CL YY. Analyzed the data: LZ YZ LX XR LL. Wrote the paper: CL LZ YZ XR.