Shi, Qin
Wei, Xingfu
Liu, Yanli
Meng, Xiangyan
Zhu, Wenzhi
Wang, Minzhen
Wang, Yufeng
Kang, Feng
Bai, Yana
Nie, Yonghong
Zheng, Shan http://orcid.org/0000-0003-4293-0874
Funding for this research was provided by:
National Natural Science Foundation of China
Article History
Received: 12 January 2021
Accepted: 12 April 2021
First Online: 20 April 2021
Declarations
:
: The study was approved by the Ethics Committee of Lanzhou University School of Public Health and research subjects signed an informed consent.
: Not applicable.
: The authors declare no competing interests.