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Authors
Ryu, Sukhyun
Kim, Sojung
Kim, Bryan I.
Klein, Eili Y.
Yoon, Young Kyung
Chun, Byung Chul
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Funding
Funding for this research was provided by:
Korean Medical Association
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Article History
Received: 1 November 2017
Accepted: 16 April 2018
First Online: 25 April 2018
Ethics approval and consent to participate
: This study was exempted from ethical approval by the Institutional Review Board designated by Korean Ministry of Health and Welfare (P01-201711-21-017).
: The authors declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
