Xin, Jun
Zhao, Yu-Hong
Zhang, Xi-Yun
Tian, Li-Qiang
Article History
Received: 5 June 2020
Accepted: 2 August 2020
First Online: 10 August 2020
Compliance with ethical standards
:
: The author(s) declare that they have no competing interests.
: This research was approved by the Ethics Committee of Linyi People’s Hospital.
: Informed consent was obtained from all individual participants included in the study.