An official website of the United States government
Here's how you know
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.
Scanning electron micrograph (SEM) showing human mesenchymal stem cell (hMSC) colonisation of a fluorapatite glass-ceramic scaffold at 35 days. Bar=500 µm.