Trends in Disease Severity Among Critically Ill Children With Severe Acute Respiratory Syndrome Coronavirus 2: A Retrospective Multicenter Cohort Study in the United States.

Ross CE, Burns JP, Grossestreuer AV, Bhattarai P, McKiernan CA, Franks JD, Lehmann S, Sorcher JL, Sharron MP, Wai K, Al-Wahab H, Boukas K, Hall MW, Ru G, Sen AI, Rajasekhar HR, Kleinman LC, McGuire JK, Arrington AS, Munoz-Rivas F, Osborne CM, Shekerdemian LS.