Fig. 4

A–C Flowchart of 3D-CH-IB-ST implantation. D–G Representative general views at 2 months after implantation in the four groups. H–J Representative images of HE staining (H), Bielschowsky’s silver staining (I), and Nissl staining (J) at 2 months after implantation in the four groups. K–M Statistical calculation of the cavity area (K), Bielschowsky’s silver staining (L), and Nissl staining area (M) in the four groups. ^*P < 0.05, ^**P < 0.01 versus TBI group, ^##P < 0.01 versus 3D-CH-ST group