Fig. 4. The M2 to M1 ratio of macrophages in the implanted cartilage templates was higher than that of empty spongostan. (a) Representative scatter diagrams of F4/80⁺CD86⁺ M1 in empty spongostan (upper left Q2) and cartilage templates (upper right Q2), and F4/80⁺CD206⁺ M2 in empty spongostan (lower left Q6) and cartilage templates (lower right Q6). (b) Statistics of M2 to M1 ratio in empty spongostan and cartilage templates. (***p < 0.001).