Figure 2From: Evaluation of chitosan-GP hydrogel biocompatibility in osteochondral defects: an experimental approachPercentage of cells stained for type II collagen in normal articular cartilage (Initial) and in healing tissues formed in presence or absence of chitosan-GP. Cells were counted under fluorescence microscope, and the relative number of type II collagen-positive cells (green and yellow cells) is given (as percent). Brackets indicate differences statistically significant (P < 0.05).Back to article page