Received: 20 April 2021
Accepted: 15 October 2021
First Online: 11 December 2021
: This study was conducted in accordance with the Declaration of Helsinki (1975) and approved by the ethics committee of Jinan Sixth People's Hospital (Approval no. JXPA-J987G, 2018.5.12, Shandong Province, China). All individuals provided written informed consent for the use of human specimens for clinical experiments.
: The authors declare that they have no competing interests.