Choi, Hee Jun
Ryu, Jai Min
Kim, Isaac
Nam, Seok Jin
Kim, Seok Won
Yu, Jonghan
Lee, Jeong Eon
Lee, Se Kyung
Article History
Received: 6 March 2019
Accepted: 26 March 2019
First Online: 7 May 2019
Compliance with ethical standards
:
: The authors declare that they have no conflicts of interest to disclose in relation to the production of this study.
: This study adhered to ethical tenets of the Declaration of Helsinki and was approved by the Institutional Review Board of Samsung Medical Center, Seoul, Korea (IRB File No. 2017-09-051).
: The need for informed consent was waived because of the low risk posed by this investigation.