Shin, Dae Hwan
Lee, Yong Woo
Song, Ji Eun
Choi, Chul Young
Article History
Received: 5 June 2019
Accepted: 1 July 2020
First Online: 9 July 2020
Ethics approval and consent to participate
: This study received ethical approval from the Institutional Review Board of the Kangbuk Samsung Hospital (Seoul, Korea; IRB_2020–05-025). Informed consent was waived because of the retrospective nature of the study.
: Not applicable.
: The authors declare that there is no competing interest.