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Authors
Yang, Heekyung
Min, Kyungha https://orcid.org/0000-0002-5150-2524
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Funding
Funding for this research was provided by:
National Research Foundation of Korea (NRF-2018R1D1A1A02050292, NRF-2017R1D1A1B03034137)
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Article History
First Online: 28 February 2019
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest. The research grant is the grant supported by the university.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards.
: Informed consent was obtained from all individual participants included in the study.
