Funding for this research was provided by:
National Research Foundation of Korea (2017R1A6A3A11034394, 2016R1A2B4008606)
Korea Health Industry Development Institute (HI17C0888)
Text and Data Mining valid from 2018-06-07
Received: 29 November 2017
Accepted: 27 March 2018
First Online: 7 June 2018
Ethics approval and consent to participate
: This study was carried out in accordance with all relevant institutional guidelines. The Ethics Committee of Hanyang University Hospital approved this study (IRB 2014-05-002) and written informed consent was obtained from all subjects.
: The authors declare that they have no competing interests.
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