Su, Yuxi
Jin, Chen
Duan, Xiaokun
Wang, Jing
Li, Kuang
Article History
Received: 20 March 2020
Accepted: 12 May 2020
First Online: 20 May 2020
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: The ethics committee of The Second Affiliated Hospital of Shandong First Medical University approved this study.
: Informed consent was obtained from all individual participants included in the study.