Received: 23 October 2021
Accepted: 7 February 2022
First Online: 15 February 2022
: This study was reviewed and approved by the Ethics Review Board of Shandong First Medical University, Taian, China (approval number 2020–04-036). Written informed consent was obtained form all participants in this study. All methods were performed in accordance with relevant guidelines and regulations.
: Not applicable.
: The authors do not have any possible conflicts of interest.