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Data from a representative sample showing the definitions of (A) the baseline stress from the initial pre-overstretch baseline test (at 1.03*λIV) and (B) the baseline stretch levels λZ1 (from the overstretch test; λZ max = 1.3*λIV) and λZ2 (from the post-overstretch failure test; cropped data shown) corresponding to the baseline stress. (●) indicates the undamaged in vivo stress-stretch state.
