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.
Relationship between (a) %lobar ventilation and %lobar non-pneumonia; (b) ventilation CV to %lobar non-pneumonia. Receiver operating characteristic (ROC) curves to classify (c) symptoms and (d) dyspnea. The area under the curves for %pneumonia, %ventilation defect and ventilation CV are shown in the legend.
