Wang, Hui http://orcid.org/0000-0002-7617-3157
Ji, Xiang
Article History
Received: 27 August 2019
Accepted: 10 January 2020
First Online: 22 January 2020
Ethics approval and consent to participate
: This study was approved by the ethics committee of the People’s Hospital of Jiaozuo City. All patients have signed the informed consent.
: Not applicable.
: The authors declare that they have no competing interests.