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Correlation between flow rate and increase in perfusion pressure in rat isolated perfused mesenteric arterial bed in the absence (⋄, n = 6, y = 4.9 × − 1.32, r2 = 0.99) and presence (□, n = 6, y = 4.90 × − 0.86, r2 = 0.99) of l-NAME (100 μM).
