About the Authors

Ju Luo

Contributed equally to this work with: Ju Luo, Shifang Zhou

Roles Methodology, Writing – original draft

Affiliation Department of Geriatrics, The Affiliated Changsha Central Hospital, Hengyang Medical School, University of South China, Changsha, China

Shifang Zhou

Contributed equally to this work with: Ju Luo, Shifang Zhou

Roles Formal analysis, Investigation, Methodology

Affiliation Department of Emergency Medicine, The Affiliated Changsha Central Hospital, Hengyang Medical School, University of South China, Changsha, China

Ning Ding

Roles Conceptualization, Funding acquisition, Writing – review & editing

doctordingning@sina.com

Affiliation Department of Emergency Medicine, The Affiliated Changsha Central Hospital, Hengyang Medical School, University of South China, Changsha, China

Competing Interests

The authors have declared that no competing interests exist.