Kim, Keunyoung
Kim, In-Joo
Pak, Kyoungjune
Kang, Taewoo
Seol, Young Mi
Choi, Young Jin
Kim, Hyojeong
Article History
Received: 26 May 2021
Accepted: 14 October 2021
First Online: 27 October 2021
Declarations
:
: This retrospective study was approved by the Institutional Review Board (IRB) of the Pusan National university hospital, which waived the requirement for written consent (IRB No. 2011–032-097). The study was performed in accordance with the relevant guidelines and regulations.
: Not applicable.
: The authors declare that they have no competing interests.