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Authors
Yoo, Jong Jin
Kim, Dong Hyun
Kim, Hyun Ah
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Funding
Funding for this research was provided by:
Ministry of Health & Welfare, Republic of Korea (HI16C0287)
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Article History
Received: 8 September 2017
Accepted: 1 March 2018
First Online: 12 March 2018
Ethics approval and consent to participate
: Ethical approval for the study was obtained from the Ethics Committees of Hallym University. All participants provided written informed consent.
: Not applicable.
: The authors declare that they have no competing interests.
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