Yang, Chan Min
Lim, Dong Hui
Hwang, Sungsoon
Hyun, Joo
Chung, Tae-Young
Article History
Received: 19 December 2017
Accepted: 27 February 2018
First Online: 7 March 2018
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 Samsung Medical Center (Seoul, Republic of Korea). Informed written consent was obtained from all participants.
: Not applicable.
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