Fig. 7From: Repair of articular cartilage defects with intra-articular injection of autologous rabbit synovial fluid-derived mesenchymal stem cellsImmuno-histological staining of Collagen I. A–C Representative Collagen I staining of repaired cartilage at 12 weeks. a–c Enlarged image of the dashed box in A–C, respectively. Scale bar: 100 μmBack to article page