Figure 2.
Receiving operating characteristic plot of 28 evaluations of ultrasonography compared to venography for detecting asymptomatic deep venous thrombosis in proximal veins in Level 1 (potentially unbiased) studies.
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.