Funding for this research was provided by:
National Quarantine Station
Received: 19 September 2020
Accepted: 7 July 2021
First Online: 16 July 2021
: The Institutional Review Board of The Catholic University of Korea, Seoul St. Mary’s Hospital approved the collection and use of clinical information for research purposes (KC19QES10646; Approval date, September 18, 2019). This study is in compliance with the 2013 Helsinki World Medical Association Declaration. The response to this survey implied their consent and written consent to participate was waived.
: Not applicable.
: The authors declare that they have no competing interests.