Intensivist coverage and critically ill COVID-19 patient outcomes: a population-based cohort study.

"Declarations Ethics approval and consent to participateThe Institutional Review Board (IRB) of Seoul National University Bundang Hospital waived the requirement for IRB approval of this study due to the use of public data available to all researchers (IRB number: X-2205-758-901). The requirement for informed consent was waived by the IRB because the study was based on a retrospective analysis of anonymized data. Consent for publicationNot applicable. Competing interestsThe authors declare that they have no competing interests. Competing interests The authors declare that they have no competing interests."

"Funding This research did not receive any specific grant from funding agencies in the public, commercial, or not-for-profit sectors."