Received: 13 August 2020
Accepted: 11 March 2021
First Online: 31 March 2021
: This study was conducted in accordance with the declaration of Helsinki. This study was conducted with approval from the Ethics Committee of First Hospital of Shanxi Medical University. A written informed consent was obtained from all participants.
: Not applicable.
: All authors have contributed significantly to the manuscript and declare that the work is original and has not been submitted or published elsewhere. None of the authors have any financial disclosure or conflict of interest.