Fig. 4From: Rationale and pre-clinical evidences for the use of autologous cartilage micrografts in cartilage repairType I collagen expression. The type I collagen expression was evaluated by immunohistochemistry in the cells cultured both in the control or chondrogenic medium in the presence or absence of autologous micrografts after 4 weeks of culture (magnification × 10 and × 20)Back to article page