Article History
Received: 8 July 2020
Accepted: 10 September 2020
First Online: 17 September 2020
Ethics approval and consent to participate
: The study was approved by IRB (institutional review board)/EC (Ethics committee) of Dongtan Sacred Heart Hospital, Hallym University, Korea (approval number: HDT 2019–06-016).
: Not applicable.
: The author reports no conflicts of interest in this work.