Kang, Min Ju
Pyun, Jung-Min
Baek, Min Jae
Hwang, Kihwan
Han, Jung Ho
Park, Young Ho
Kim, Chae-Yong http://orcid.org/0000-0001-9773-5553
Kim, SangYun
Article History
Received: 1 January 2020
Accepted: 26 May 2020
First Online: 3 June 2020
Ethics approval and consent to participate
: The Institutional Review Board of Seoul National University Bundang Hospital approved the study protocol and granted a waiver of informed consent due to the retrospective nature of the study and minimal risk to participants (B-1809/493-112).
: Patient’s permission was not required as the data were de-identified using existing records. The article does not include any figure or video of a recognizable patient.
: The authors declare that they have no competing interests.