Zhang, Ya
Wang, Cuicui
Liu, Dong
Zhou, Zhengyuan
Gu, Shujun
Zuo, Hui
Article History
Received: 10 February 2021
Accepted: 11 October 2021
First Online: 21 October 2021
Declarations
:
: The study protocol conforms to the ethical guidelines of the Declaration of Helsinki. The baseline survey and record linkages with study outcomes were approved by the Ethics Committee of Fuwai Cardiovascular Hospital, Beijing, China (No. 2012–399). After a detailed explanation of our study, we obtained a written informed consent from each participant.
: Not applicable.
: The authors declare they have no conflicts of interest.