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Fig. 7. In situ hybridization for ECE1 (A-C,G-I) and Cx40 (E-F,J-L) in E6-6.5
control (A-F) and CTB (G-L) hearts. High-power view of boxed areas in
transverse sections (B,E,H,K) of the ventricle of whole-mount stained hearts
are presented in C,F,I,L, respectively. at, atrium; avj, atrioventricular
junction; ec, endocardium; ivs, interventricular septum; lv, left ventricle;
ot, outflow tract; rv, right ventricle; tb, trabeculum.