Guo, Man
Xu, Chao
Chen, Yan-Zhe
Sun, Qi-Wen
Zhao, Xin-Ying
Liu, Xin
Yang, Yi
Hu, Yi-Yan
Li, Fei-Feng
Liu, Shu-Lin
Funding for this research was provided by:
Health and Family Planning Commission of Heilongjiang province Foundation (2017-077)
National Natural Science Foundation of China (NSFC81271786, 81030029, 81671980, 81871623)
Heilongjiang Innovation Research Foundation for College Students (201810226070)
Article History
Received: 6 December 2019
Accepted: 30 March 2020
First Online: 23 April 2020
Ethics approval and consent to participate
: Ethics Committee of Harbin Medical University.
: Not applicable.
: All the authors have declared that no competing interests exist.