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.
Software screenshot showing (a) 3D view with small crosshair indicating current position, (b) perpendicular view at current position, and (c) perpendicular series showing serial cross sections proximal and distal to current position at 1-mm intervals.
