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Authors
Choi, Songhwa
Ko, Hyeonyoung
Lee, Kayoung
Sung, Joohon
Song, Yun-Mi https://orcid.org/0000-0001-9232-5563
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Funding
Funding for this research was provided by:
Ministry of Science, ICT and Future Planning (2014R1A2A2A01002705)
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Article History
Received: 14 May 2018
Accepted: 29 November 2018
First Online: 19 December 2018
Ethics approval and consent to participate
: Written informed consent was obtained from all participants of this study. The study protocol was approved by the Institutional Review Board at the Samsung Medical Center and Seoul National University School of Public Health.
: Not applicable.
: All authors declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
