Wang, Shuping
Wang, Yutao
Yu, Riyue
Yuan, Dingxiang
Ni, Yaofeng
Wang, Lixin
Sun, Man
Wang, Xin
Article History
Received: 5 May 2022
Accepted: 4 October 2022
First Online: 15 October 2022
Declarations
:
: The CHARLS study was approved by the institutional review board of Peking University (IRB00001052-11015). All procedures were performed in accordance with the 1964 Declaration of Helsinki and its later amendments or with comparable ethical standards. All participants have provided the informed consents.
: Not applicable.
: The authors declare that they have no competing interests.