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.
Photomicrograph of the immunohistochemistry staining for collagen type II in chondrocytes an in vitro model of human femoral head necrosis (FHN). Collagen type II staining of chondrocytes from control, alcohol-induced, and steroid-induced femoral head necrosis (FHN). Scale bar: 200 μm.
