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Nppa-tagBFP knock-in reporter expression during heart development. Whole mount embryos (a and c) and embryonic hearts (b, d–f) demonstrate Nppa-tagBFP reporter expression within the heart at the indicated developmental stages. A: atrium; V: ventricle; OFT: out flow tract; AVC: atrioventricular canal; LV: left ventricle; RV: right ventricle; LA: left atrium: RA; right atrium. The same expression patterns were confirmed with at least three litters of mouse embryos at each time point
