Lee, Jihyuk
Joo, Ijin http://orcid.org/0000-0002-1341-4072
Lee, Dong Ho
Jeon, Sun Kyung
Lee, Jeong Min
Article History
Received: 22 May 2020
Revised: 1 August 2020
Accepted: 8 August 2020
First Online: 18 August 2020
Compliance with ethical standards
:
: All authors declare no conflict of interest.
: This retrospective study was approved by our institutional review board and the requirement for informed consent was waived.