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Funding
Funding for this research was provided by:
National Research Foundation of Korea (2017R1C1B5017180, 2017R1B5A2085456)
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Article History
Received: 16 January 2018
Accepted: 4 April 2018
First Online: 19 April 2018
Ethics approval and consent to participate
: Patients provided written informed consent to participate in the study, and this study was approved by the Institutional Review Board of CHA University.
: Patients provided consent for individual patient data to be published.
: The authors declare that they have no competing interests.
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