Figure 1.
A flowchart of the study. COVID-19 = disease coronavirus disease 2019, CT = computer tomography, RR = respiratory rate, SpO2 = percutaneous oxygen saturation.
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.