Hu, Zhigang
Tian, Yufeng
Song, Xinyu
Zeng, Fanjun
Yang, Ailan
Article History
Received: 2 January 2022
Accepted: 17 August 2022
First Online: 24 August 2022
Declarations
:
: The study procedures were carried out by the Declaration of Helsinki. Written informed consents were collected in National School of Development of Peking University on the China Health and Retirement Longitudinal Study(CHARLS). WHO Ethical Review Committee and local ethics research review boards approved ethical and obtained written informed consent on Global Ageing and Adult Health (SAGE). All experiments were performed in accordance with relevant guidelines and regulations. All experimental protocols were approved by the Institutional Review Board at China, Three Gorges University. This study was deemed exempt for review by the Institutional Review Board at China, Three Gorges University.
: Not applicable.
: The authors declare that they have no confict of interest.