Fig. 2From: Characterization of polydactyly-derived chondrocyte sheets versus adult chondrocyte sheets for articular cartilage repairMicroscopic view of the proliferation of PDs. PDs seeded on temperature-responsive culture inserts were observed on day 3 (a), day 5 (b), day 7 (c), and day 14 (d) (×100). Cells reached confluence at day 5 and, by day 14, they were tightly packed. (Scale bar = 100 μm)Back to article page