About the Authors

He Zhang

Roles Conceptualization, Data curation, Formal analysis, Investigation, Software, Validation, Visualization, Writing – original draft

Affiliations Graduate School of Peking Union Medical College and Chinese Academy of Medical Sciences, Dongdan, Beijing, P.R China, The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics, Beijing Hospital, National Center of Gerontology, National Health Commission, Dong Dan, Beijing, P.R. China, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Dong Dan, Beijing, P.R. China

Li-Qun Zhang

Roles Project administration

Affiliation The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics, Beijing Hospital, National Center of Gerontology, National Health Commission, Dong Dan, Beijing, P.R. China

Cheng-Cheng Yang

Roles Data curation, Investigation

Affiliations The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics, Beijing Hospital, National Center of Gerontology, National Health Commission, Dong Dan, Beijing, P.R. China, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Dong Dan, Beijing, P.R. China, Department of Pharmacy, Wenzhou Medical College, Wenzhou, Zhejiang, P.R China

Jin Li

Roles Formal analysis

Affiliations The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics, Beijing Hospital, National Center of Gerontology, National Health Commission, Dong Dan, Beijing, P.R. China, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Dong Dan, Beijing, P.R. China

Xin-Yuan Tian

Roles Investigation

Affiliations The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics, Beijing Hospital, National Center of Gerontology, National Health Commission, Dong Dan, Beijing, P.R. China, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Dong Dan, Beijing, P.R. China, Peking University Fifth School of Clinical Medicine, Beijing Hospital, Beijing, P.R. China

Dan-Ni Li

Roles Data curation

Affiliations The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics, Beijing Hospital, National Center of Gerontology, National Health Commission, Dong Dan, Beijing, P.R. China, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Dong Dan, Beijing, P.R. China, Peking University Fifth School of Clinical Medicine, Beijing Hospital, Beijing, P.R. China

Ju Cui

Roles Project administration, Supervision

Affiliations The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics, Beijing Hospital, National Center of Gerontology, National Health Commission, Dong Dan, Beijing, P.R. China, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Dong Dan, Beijing, P.R. China

Jian-Ping Cai

Roles Conceptualization, Project administration, Supervision, Writing – review & editing

caijp61@vip.sina.com

Affiliations Graduate School of Peking Union Medical College and Chinese Academy of Medical Sciences, Dongdan, Beijing, P.R China, The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics, Beijing Hospital, National Center of Gerontology, National Health Commission, Dong Dan, Beijing, P.R. China, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Dong Dan, Beijing, P.R. China

Competing Interests

The authors have declared that no competing interests exist.