Yoon, Kyoung Ho
Kang, Se Gu
Kwon, Yoo Beom
Kim, Eung Ju
Kim, Sang-Gyun http://orcid.org/0000-0002-1808-1094
Article History
Received: 11 October 2018
First Online: 4 March 2019
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: Institutional review board approval was obtained by the ethics committee of Kyung Hee University Hospital (IRB Number: KHUH 2018-04-042).