Received: 15 April 2021
Accepted: 17 June 2021
First Online: 13 July 2021
: All methods in this study were performed in accordance with the Helsinki Declaration’s relevant guidelines and regulations. This study was approved by the Ethics Committees of the Second Hospital of Shanxi Medical University. Informed consent was obtained from all patients.
: Not applicable.
: The authors declare that they have no competing interests.