Hua, Junjie
Ning, Peishan
Cheng, Peixia
Rao, Zhenzhen
He, Jieyi
Xiao, Wangxin
Li, Li
Fu, Yanhong
Li, Ruotong
Li, Jie
Wang, Wanhui
Schwebel, David C.
Hu, Guoqing
Funding for this research was provided by:
Natural Science Foundation of Hunan Province, China (2020JJ4764)
Project Program of National Clinical Research Center for Geriatric Disorders (2020LNJJ14)
Article History
Received: 19 September 2021
Accepted: 27 December 2021
First Online: 24 January 2022
Declarations
:
: The research protocol was approved by the Medical Ethics Committee of Central South University on 25 January 2021 (No. XYGW-2021-06). This study used national registration data for secondary analysis, does not involve clinical/personal data, and was exempted from requirements for informed consent to participate.
: Not applicable.
: The authors declare that they have no competing interests.