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Figure 1 Schematic diagram depicting the mechanism by which cardiac secretion of natriuretic peptides serves to maintain intravascular volume homeostasis. ANP = atrial natriuretic peptide; BNP = B-type natriuretic peptide; LA = left atrium; RA = right atrium; LVEDP = left ventricular end-diastolic pressure; RAAS = renin-angiotensin-aldosterone system; RVEDP = right ventricular end-diastolic pressure.