Bao, Heling
Jia, Guohua
Cong, Shu
Sun, Wanlu
Fan, Jing
Wang, Ning http://orcid.org/0000-0002-1849-1747
Feng, Yajing
Wang, Baohua
Curtis, Jeffrey L. http://orcid.org/0000-0001-5191-4847
Wang, Linhong
Fang, Liwen
Chen, Yahong
Article History
Received: 29 July 2020
Accepted: 29 April 2021
First Online: 1 June 2021
Competing interests
: The authors declare no competing interests.
: The study protocol was approved by the Ethical Review Committee of the National Center for Chronic and Non-communicable Disease Control and Prevention, China CDC. Written informed consent was obtained from all study participants (NO. 201410).