Figure 1.
Flowchart of selection and recruitment of patients with long COVID. SARS-CoV-2, severe acute respiratory syndrome coronavirus-2; COVID, coronavirus disease.
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.