Text and Data Mining valid from 2020-04-08
Received: 23 February 2020
Accepted: 24 March 2020
First Online: 8 April 2020
Ethics approval and consent to participate
: This study was approved by the Institutional Review Board of Seoul National UniversityBundang Hospital (IRB No. B-1907-555-105).
: Consent for publication was obtained.
: No potential conflict of interest relevant to this article was reported.