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Authors
Jeong, Jae‐Jung
Oh, Seung‐bae
Ji, Jong‐Hun https://orcid.org/0000-0003-1087-3254
Park, Seok‐Jae
Ko, Myung‐Sup
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Article History
Received: 25 September 2017
Accepted: 4 January 2019
First Online: 18 January 2019
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 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.
