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Authors
Byun, Jun Soo
Lee, Jeong Kyu https://orcid.org/0000-0001-9797-9945
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Funding
Funding for this research was provided by:
National Research Foundation of Korea (NRF-2017R1D1A1A09082089)
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Article History
Received: 17 December 2017
Revised: 11 June 2018
Accepted: 21 June 2018
First Online: 29 June 2018
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: All procedures performed in studies involving human participants were in accordance with ethical standards of the institutional and/or national research committee (Chung-Ang University Hospital Institutional Review Board) and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards. For this type of study, formal consent is not required.
