Document is current
Any future updates will be listed below
-
Authors
Liu, Lili
Zhang, Chen
Lv, Xiaozhen
Lai, Xuefeng
Xu, Lu
Feng, Jingnan
Song, Yongfeng http://orcid.org/0000-0001-8934-3154
Wang, Shengfeng
Zhan, Siyan
-
Funding
Funding for this research was provided by:
National Natural Science Foundation of China (81922016, 81870607)
Natural Science Foundation of Shandong Province (ZR2019JQ25)
- License Information
-
More Information
Article History
Received: 6 July 2020
Accepted: 23 November 2020
First Online: 7 December 2020
Ethics approval and consent to participate
: The survey and the whole protocol were approved by the Institutional Review Board of Peking University, China (IRB00001052-11015). All subjects provided written informed consent to participate at each study visit.
: Not applicable.
: The authors report no competing interests.
