Kim, Joungmin
Pyeon, Taehee
Choi, Jeong Il
Kang, Jeong Hyeon
Song, Seung Won
Bae, Hong-Beom http://orcid.org/0000-0002-0358-6807
Jeong, Seongtae
Article History
Received: 15 September 2019
Accepted: 3 December 2019
First Online: 17 December 2019
Ethics approval and consent to participate
: This single-center retrospective cohort study was approved by the institutional review board (IRB) of Chonnam National Universitiy Hospital (IRB approval number: CNUH-2019-018). The informed consent was waived because of the retrospective nature of this study.
: Not applicable.
: The authors declare that they have no competing interest.