Wang, Junying
Dou, Weiqiang
Shi, Hao
He, Xiaoyi
Wang, Huiyang
Ge, Yaping
Cheng, Haichao
Article History
Received: 6 January 2020
Revised: 7 April 2020
Accepted: 16 April 2020
First Online: 6 May 2020
Compliance with ethical standards
:
: The authors each declare that they have no conflict of interest.
: All procedures performed in studies involving human participants were approved by the appropriate ethics committee of the First Affiliated Hospital of Shandong First Medical University.
: Informed consent was obtained from all individual participants included in the study.