Paek, Eun Young http://orcid.org/0000-0003-3523-7801
Yi, Dae Yong http://orcid.org/0000-0002-4168-7131
Kang, Ben http://orcid.org/0000-0002-8516-9803
Choe, Byung-Ho http://orcid.org/0000-0001-9899-9120
Article History
Received: 4 April 2020
Accepted: 28 July 2020
First Online: 8 August 2020
Ethics approval and consent to participate
: This study was conducted after obtaining approval from the Institutional Review Board of Chung-Ang University Hospital (IRB no. 1712–014-16123) and Kyungpook National University Hospital (IRB no. 2020–03-019), and informed consent was waived owing to the retrospective nature of the study.
: Not applicable.
: The authors declare that they have no competing interests.