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The chondrogenic differentiation of hADSCs as evaluated by immunohistochemistry for type II collagen. Type II collagen and nuclei were stained green and blue, respectively. The hADSCs were cultured for 14 days in either growth medium or differentiation medium with or without TGF-β3. All of the scale bars indicate 100 μm. Color images available online at www.liebertpub.com/tea
