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Figure 3 Plasma levels of endothelin-1 (ET-1), atrial natriuretic peptide (ANP), brain natriuretic peptide (BNP) and cyclic guanosine monophosphate (cGMP) before and after 14 weeks of treatment with candesartan cilexetil in 14 patients with mild to moderate congestive heart failure. *p < 0.05 vs. before.