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.
Images of a 55-year-old female patient with atypical pneumonia. Noise was reduced considerably when changing from QIR-off to higher levels of QIR. Note the slightly smoother appearance of QIR-4 as opposed to lower levels of QIR indicating slightly reduced sharpness.
