Funding for this research was provided by:
This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (2016R1A6A1A03010528)
Text and Data Mining valid from 2019-01-24
Received: 19 March 2018
Accepted: 10 January 2019
First Online: 24 January 2019
Ethics approval and consent to participate
: This study was approved by the Ethics Committee of the Seoul St. Mary’s Hospital (Korea) and the requirement for individual consent was waived (IRB Registry Number KC16RISI1020).
: Not applicable.
: The authors declare that they have no competing interests.
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