Article History
Received: 4 August 2020
Accepted: 25 January 2021
First Online: 1 March 2021
Ethics approval and consent to participate
: This study was approved by the Institutional Review board (IRB) of Pusan National University Hospital (IRB number: H-1911-004-084), and written informed consent was obtained from all participants.
: Not applicable
: The authors declare that they have no competing interests.