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.
Representative images of Safranin O stained histological sections of callus from different treatment groups. The three panels on the right are an enlarged presentation (× 10) of the outlined region in the left panels (× 2). The callus sections of the SIM/SIM-mPEG group were devoid of chondrocytes and cartilage matrix, indicating advanced ossification. Bar = 1 mm (left panels) or 0.2 mm (right panels).
