Figure 4.
Concentration of EGF and bFGF in U251 cell culture supernatant, as detected by ELISA. EGF, epithelial growth factor; bFGF, basic fibroblast growth factor.
Concentration of EGF and bFGF in U251 cell culture supernatant, as detected by ELISA. EGF, epithelial growth factor; bFGF, basic fibroblast growth factor.