In vitro cell compatibility histology of (A,C) C2C12 myoblasts and (B,D,E) perivascular stem cells cultured for 7 days on the surface of M-ECM (A,B,E) or SIS (C,D). Representative images of (A–D) H&E cross sections and (E) fluorescent imaging labeling with phalloidin for actin (red) or DAPI for nuclei (blue). Scale bar represents 100 μm. (For interpretation of the references to color in this figure legend, the reader is referred to the web version of this article.)