Jeong, Seonjeong
Nam, Gi Byoung
Chang, Jai Won
Kim, Min-Ju
Han, Youngjin
Kwon, Tae-Won
Cho, Yong-Pil http://orcid.org/0000-0002-0639-451X
Article History
Received: 2 September 2018
Accepted: 10 October 2018
First Online: 20 October 2018
Ethics approval and consent to participate
: The research was approved by the Institutional Review Board of Asan Medical Center (2018–0442), which waived the need for informed consent.
: Not applicable.
: The authors declare that they have no competing interests.
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