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Circulating atrial natriuretic peptide (ANP) levels in experimental fetal right carotid artery-jugular vein (AV) fistula. Plasma ANP levels were not different between groups at baseline (day 0) but were 5-fold greater in the AV fistula than the sham group on days 4 and 7. Values are means ± SE. *P < 0.05 vs. same-day sham group. †P < 0.05 vs. day 0 within group.
