Lee, Hakmin
Lee, Minseung
Lee, Sang Eun
Byun, Seok-Soo
Kim, Hyeon Hoe
Kwak, Cheol
Hong, Sung Kyu http://orcid.org/0000-0002-8344-6774
Article History
Received: 18 August 2017
Accepted: 8 April 2018
First Online: 16 April 2018
Ethics approval and consent to participate
: This study was approved by the institutional review board of Seoul National University Bundang Hospital. The patients’ consent was waived due to the retrospective nature and minimal risk to the subjects.
: The authors declare that they have no competing interests.
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