Received: 17 August 2020
Accepted: 30 November 2020
First Online: 6 January 2021
Ethics approval and consent to participate
: All patients provided signed informed consent prior to enrollment. The experiment protocols were conducted with approval of the Medical Ethics Committee of Linyi People’s Hospital and in accordance with <i>the Declaration of Helsinki</i>. The animal use and experimental procedures in this study were approved by the animal ethics committee of Linyi People’s Hospital.
: Not applicable.
: The authors declare that there is no competing interest.