Osteochondral cores were analyzed for chondrocyte viability by Live/Dead® fluorescence staining in the en face (A–D) and vertical (E–H) profiles. Representative images of cores from fresh control (A, E), 12 days at 37°C (B, F), 28 days at 37°C (C, G), and 28 days at 4°C (D, H) are shown. Scale bar: 100 μm. Color images available online at www.liebertonline.com/ten.