Received: 21 October 2020
Accepted: 28 January 2021
First Online: 12 February 2021
Ethics approval and consent to participate
: The present study was approved by the ethics committee of the Keimyung University Dongsan Medical Center (IRB No. DSMC-2016-01-041-001). All methods were carried out in accordance with relevant guidelines and regulations Written informed consent was obtained from all participants.
: Not applicable.
: The authors declare that they have no competing interests.