Search results: DC.title:Effects AND DC.title:of AND DC.title:intubation AND DC.title:timing AND DC.title:in AND DC.title:patients AND DC.title:with AND DC.title:COVID-19 AND DC.title:throughout AND DC.title:the AND DC.title:four AND DC.title:waves AND DC.title:of AND DC.title:the AND DC.title:pandemic: AND DC.title:a AND DC.title:matched AND DC.title:analysis