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Authors
Lee, Juhwan
Hwang, Yoo Na
Kim, Ga Young
Kwon, Ji Yean
Kim, Sung Min http://orcid.org/0000-0001-6457-989X
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Funding
Funding for this research was provided by:
Dongguk University Research Fund (S-2017-G0001-00047)
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Article History
Received: 6 January 2019
Accepted: 18 December 2019
First Online: 30 December 2019
Ethics approval and consent to participate
: This study was approved by the Institutional Review Board of Ulsan University Hospital, Republic of Korea and the need for signed informed consent was waived because it was a retrospective study without patient interactions.
: Not applicable.
: The authors declare that they have no competing interests.
