Lee, Jae Hyuck
Lee, Hun
Lee, Jin Ah.
Yoo, Aeri
Kim, Jae Yong
Tchah, Hungwon
Article History
Received: 3 November 2019
Accepted: 30 April 2020
First Online: 15 May 2020
Ethics approval and consent to participate
: This study was performed in accordance with the tenets of the Declaration of Helsinki. Approval to conduct this study was obtained from the Institutional Review Board of the Asan Medical Center (Seoul, Republic of Korea). Informed written consent was obtained from all participants.
: Not applicable.
: No conflicts of interest and have no proprietary interest in any of the materials mentioned in this article.