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Figure 2 Changes in urine flow rate (UV) and urinary salt excretion (UnaV) during a 4-h infusion of isotonic saline and the 48-h period after the infusion in heart- (HTR) and liver-transplant recipients (LTR) both before (W/O ACEi) and after stabilization (With ACEi) on captopril (225 mg/day). Data are mean value ± SEM. *p 0.05 HTRs before captopril versus HTRs after captopril and LTR both before and after captopril. ACEi = angiotensin-converting enzyme inhibition.