Article History
Received: 6 July 2021
Accepted: 31 August 2021
First Online: 8 September 2021
Declarations
:
: This study was approved by the Institutional Review Board of Incheon St. Mary’s Hospital. All procedures performed in studies were in accordance with the ethical standards of our institutional ethical committee. Informed consent was waived by the committee because of the retrospective nature of the study.
: Not applicable.
: Not applicable.