Li, Lijun
Chang, Feng
Hai, Yong http://orcid.org/0000-0003-1484-7598
Yang, Jincai
Xu, Cheng
Yuan, Jie
Sun, Jiuqiang
Wang, Qinghua
Ding, Shengqiang
Yang, Xiaowen
Funding for this research was provided by:
Key research and development project of Shanxi Province (general) social development project in China (No. 201703d321012-1)
Article History
Received: 10 October 2017
Accepted: 20 January 2020
First Online: 3 February 2020
Ethics approval and consent to participate
: The research was approved by the ethics committee of Shanxi provincial people’s hospital. All participants agreed with the data and publication of the manuscript. Written informed consent was obtained from all participants.
: Not applicable.
: The authors declare that they have no competing interests.