Ethics statements
VIRUS
The study was registered with cris.nih.go.kr prior to initiation (identification number: KCT0005711) and approved by the local institutional review board of Yonsei University Mirae Campus (1041849-202102-BM-024-03). The requirement for written informed consent was waived owing to the risk of virus transmission. As an alternative to written consent, online consent was obtained to proceed with the pre-evaluation; patients clicked the “I agree” button on the Google form using a tablet PC.