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Authors
Lee, Joo Yun
Min, Yul Ha http://orcid.org/0000-0002-1657-8582
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Funding
Funding for this research was provided by:
National Research Foundation of Korea (2015R1C1A2A01053155)
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Article History
Received: 21 March 2017
Accepted: 24 January 2018
First Online: 19 March 2018
Ethics approval and consent to participate
: This study was approved by the Institutional Review Board at Asan Medical Center, Seoul, Korea (no. 2016–0351). All participants completed written informed consents before the data collection.
: Not applicable.
: The authors declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
