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. 2019 Mar 18;234(6):800–814. doi: 10.1111/joa.12977

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© 2019 The Authors. Journal of Anatomy published by John Wiley & Sons Ltd on behalf of Anatomical Society.

This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

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Numbers of TCF21⁺ cells are unaltered in HH35 hearts. (A) Hearts stained for DAPI (a,e), TCF21 (b,f) and collagen I (c,g). A composite can also be seen (d,h). Zoomed sections (a’,b’,d’,e’,f’,h’) show TCF21⁺ cells (arrows) as well as their collagen I surroundings (c’,g’). Scale bars: 1 mm (a,b‐h), 100 μm (a’,b’–h’). (B) No significant difference was found concerning the numbers of TCF21⁺ cells in the different heart regions between sham and OFT‐banded hearts. Error bars denote SEM. AV, atrioventricular.