Chen, Aimei
Liu, Zhiqiang
Wu, Quanyan
Li, Hailin
Article History
Received: 13 February 2021
Accepted: 29 April 2021
First Online: 11 May 2021
Declarations
:
: Author Aimei Chen, Zhiqiang Liu, Quanyan Wu, and Hailin Li declare that they have no conflicts of interest.
: All procedures performed in studies involving human participants were conducted in accordance with the ethical standards of Weifang Yidu Central Hospital, Qilu Hospital of Shandong University with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: Informed consent was obtained from all individual participants included in the study.