Figure 4.
The Spiegelberg measurement device (Spiegelberg GmbH, Hamburg, Germany) showing the mean, maximal, and minimal IAP values (in mmHg).
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.