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Presence of cardiac markers in the PGS-based constructs: (A,B) cardiac Tn-I stains CM green, (C) connexin-43, a gap junctional protein is stained green, (A–C) DAPI stains nuclei blue. Scale bars: (A,F) 50 μm; (B) 100 μm; (C,D,E) 20 μm. All panels represent face sections within the first 100 μm of the construct surface. [Color figure can be viewed in the online issue, which is available at www.interscience.wiley.com.]
