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.
Observation of HA blockade of large blood vessels and recovery. (A) PAI of blood vessels in the tongue of normal rats. (B) PAI of a large blood vessel blocked by HA. (C) PAI of a large blood vessel blocked by HA 1 h later. (D–F) Corresponding 3D images to (A–C).
