Article History
Received: 16 September 2020
Accepted: 2 November 2020
First Online: 22 November 2020
Ethics approval and consent to participate
: Informed consent was obtained from all eligible participants. Institutional Review Board approval was not required because the survey did not deal with any sensitive information, only publicly available information.
: Sung-Ho Ahn, Jun-Hyuk Lee, and Ji-Won Lee read and approved to publication.
: Sung-Ho Ahn, Jun-Hyuk Lee, and Ji-Won Lee read and approved to publication.