Li, Yongze
Ding, Shuangning
Han, Cheng
Liu, Aihua
Shan, Zhongyan
Teng, Weiping
Mao, Jinyuan http://orcid.org/0000-0002-4974-7987
Funding for this research was provided by:
The Research Fund for Public Welfare from the National Health and Family Planning Commission of China (201402005)
National Natural Science Foundation of China (8170031476)
China Medical University Youth Support Program (QGZD2018036)
Article History
Received: 1 June 2020
Accepted: 8 September 2020
First Online: 9 October 2020
Compliance with Ethical Standards
: The study was established in 2014 and approved by the Ethics Committee of China Medical University.
: The authors declare that they have no conflicts of interest.