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vegfaa expression during zebrafish heart development and homeostasis. Tiled images of vegfaa:EGFP;tcf21:DsRed cardiac sections during (A) larval and (B) adult stages. Sections are immunostained for EGFP. Boxes correspond to the region magnified in adjacent panels. (Scale bars: A and B, Left, 100 μm; A and B, Right, 25 μm.)
