Dayimu, Alimu
Qian, Wendi
Fan, Bingbing
Wang, Chunxia
Li, Jiangbing
Wang, Shukang
Ji, Xiaokang
Zhou, Guangshuai
Zhang, Tao https://orcid.org/0000-0003-1048-4443
Xue, Fuzhong
Funding for this research was provided by:
National Natural Science Foundation of China (81573259, 81973147)
Cheeloo Young Scholars Program of Shandong University
Article History
Received: 14 May 2019
Accepted: 3 October 2019
First Online: 28 October 2019
Ethics approval and consent to participate
: The study protocol was approved by the ethics committee of school of public health, Shandong university. Written informed consent was obtained from all participants.
: Not applicable.
: The authors declare that they have no competing interests.