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Figure 5 (A) Conduction velocity during sinus rhythm versus immunolocalized Cx40 expression. Conduction velocity during sinus rhythm versus relative quantity of immunolabeled Cx40 (Cx40/[Cx40+Cx43]) (B) and the inverse equivalent relative Cx43 signal (Cx43/[Cx40+Cx43]) (C). (D) Change in conduction velocity on pacing versus relative quantity of immunolabeled connexins (Cx40/[Cx40+Cx43]).
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