Baek, Hyeong-Jin
Kim, Il-hyung
Yun, Pil-Young
Kim, Young-Kyun
Article History
Received: 11 January 2021
Accepted: 13 April 2021
First Online: 20 April 2021
Declarations
:
: The study was performed in accordance with the guidelines of the Helsinki Declaration (2013), protecting the participants’ anonymity, privacy and maintaining public confidence. All participants provided written informed consent for participation in this research, which was approved by the Institutional Review Board at Seoul National University Bundang Hospital.
: Not applicable.
: The authors declare that they have no competing interests.