FIGURE 2.
Kaplan–Meier curves for survival time until day 90 during the three waves of the COVID‐19 pandemic. ECMO, extracorporeal membrane oxygenation
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.