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Fig. S4 PDGF-BB induces mobile cells to detach in vitro from sham-operated heart explants. Sham-operated heart explants were cultured for 3 d and then treated with recombinant PDGF-BB (n = 6) for 1 d (from day 3 to day 4 in culture). BSA was used as a control (n = 6). Each individual explant was imaged in at least three different fields of view; a representative image is shown. (Scale bars: A and B, 500 μm; C and D, 400 μm.)
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