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Figure 3 Radial artery (RA), carotid artery (CA) and abdominal aorta (AO) distensibility in 30 patients with congestive heart failure taking three different treatment regimens at baseline and two months later. Data are shown as mean ± SE. Open bar = control; hatched bar = treatment, two months. ACEI = angiotensin-converting enzyme inhibitor; ATA = angiotensin II antagonist; T = treatment.