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.
The functions and characteristics of the five key growth factors: basic fibroblast growth factor (b-FGF), vascular endothelial growth factor (VEGF), platelet-derived epidermal growth factor (PDEGF), transformative growth factor beta (TGF-β1), and insulin-like growth factor (IGF).
