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Individual responses of LVEDP to 30-μL bolus infusions of 5% albumin (12.5 g human albumin/250 mL aqueous diluent) (Grifols Pharmaceuticals) in WT (A), β-arrestin 1 KO (B), β-arrestin 2 KO (C), and AT1R KO (D) mice. Mice that did not develop an increase in LVEDP of >5 mm Hg were excluded from the contractility analyses.
