Funding for this research was provided by:
Korean Heart Rhythm Society (KHRS 2016-3)
Text and Data Mining valid from 2019-11-20
Received: 5 April 2019
Accepted: 30 April 2019
First Online: 20 November 2019
Ethics approval and consent to participate
: The study protocol of the current study was approved and waived for informed consent by the Seoul National University Hospital Institutional Review Board (No. 1805-133-948).
: Not applicable.
: The authors declare that they have no competing interests.