Cho, Won Ki
Roh, Jong-Lyel http://orcid.org/0000-0002-1537-1977
Cho, Kyung-Ja
Choi, Seung-Ho
Nam, Soon Yuhl
Kim, Sang Yoon
Article History
Received: 22 January 2019
Accepted: 22 February 2019
First Online: 26 February 2019
Compliance with ethical standards
:
: The authors have no conflict of interest to disclose.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional research board and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards. This article does not contain any studies with animals performed by any of the authors. Informed consent from all individual participants was waved because of the retrospective nature of this study.