Figure 4.
Comparison of the failure modes in different groups after exposed to collagenase type I or type II solution for 120 h. (a) Collagenase type I; (b) Collagenase type II.
Comparison of the failure modes in different groups after exposed to collagenase type I or type II solution for 120 h. (a) Collagenase type I; (b) Collagenase type II.