Park, Jee Soo
Lee, Yong Seung
Lee, Cho Nyeong
Kim, Sung Hoon
Kim, Sang Woon
Han, Sang Won
Article History
Received: 12 October 2018
Accepted: 22 November 2018
First Online: 3 December 2018
Compliance with ethical standards
:
: All authors declare that they have no conflicts of interest pertaining to this study.
: All procedures performed in the studies involving human participants were in accordance with the ethical standards of the institutional or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: The Institutional Review Board of Yonsei University College of Medicine waived the requirement of obtaining informed consent because this study retrospectively reviewed anonymous patient data and did not involve a patient intervention or the use of human tissue samples.