Jeong, Seonjeong
Kwon, Hyunwook
Chang, Jai Won
Kim, Min-Ju
Ganbold, Khaliun
Han, Youngjin
Kwon, Tae-Won
Cho, Yong-Pil http://orcid.org/0000-0002-0639-451X
Article History
Received: 15 April 2019
Accepted: 29 October 2019
First Online: 21 November 2019
Ethics approval and consent to participate
: The research was approved by the Institutional Review Board of Asan Medical Center (2018–1318), which waived the need for informed consent.
: Not applicable.
: The authors declare they have no competing interests.