Kim, Keunyoung
Pak, Kyoungjune
Kim, In-Joo
Kim, Mijin
Kim, Bo Hyun
Lee, Byung-Joo
Kim, Seong-Jang
Article History
Received: 30 January 2020
Accepted: 22 April 2020
First Online: 5 May 2020
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: Institutional review board approval was approved (IRB No. H-1906–028–080).
: The requirement for written consent was waived because of the retrospective design.
: All writers consented for publication.