Funding for this research was provided by:
the Industrial Technology Innovation Program through the Ministry of Trade, Industry and Energy (10067378)
Basic Science Research Program through the National Research Foundation of Korea (2018R1C1B5086460)
Text and Data Mining valid from 2020-02-13
Received: 9 December 2019
Accepted: 21 January 2020
First Online: 13 February 2020
Ethics approval and consent to participate
: The Bundang CHA Hospital Institutional Review Board approval was obtained for this study, and all patients signed informed consent forms.
: All patients signed consent for publication.
: The authors declare that they have no competing interests.