Han, Gyule
Lim, Dong Hui
Yang, Chan Min
Park, Gil Ho
Park, Dae-Young
Moon, Hyun Seung
Lee, Jae Myung
Lee, Jong Ho
Chung, Tae-Young
Article History
Received: 22 October 2018
Accepted: 22 February 2019
First Online: 5 March 2019
Ethics approval and consent to participate
: This study was approved by the institutional review board of Samsung Medical Center. The institutional review board of Samsung Medical Center waived the need for informed consent for this retrospective study.
: Not applicable
: The authors declare that they have no competing interests.
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