Lee, Youngin
Lee, Seung Hun
Kim, Yun Jin
Lee, Sang Yeoup
Lee, Jeong Gyu
Jeong, Dong Wook
Yi, Yu Hyeon
Tak, Young Jin
Hwang, Hye Rim
Gwon, Mieun
Article History
Received: 4 February 2017
Accepted: 1 March 2018
First Online: 7 March 2018
Ethics approval and consent to participate
: This study was approved by the Institutional Review Board (IRB) committee of Pusan National University Hospital. Patient consent was not required due to the retrospective nature of the study.
: Not applicable.
: The authors declare that they have no competing interests.
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