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Figure 3 Immunofluorescence labeling for angiotensin II type 1 receptor and von Willebrand factor on sections of the endomyocardial biopsies of the transplanted heart. (a) Biopsy section showing immunoreactivity for angiotensin II type 1 receptor predominantly in vascular and perivascular interstitial tissue. (b) Biopsy section demonstrating immunoreactivity for von Willebrand factor in the endothelium. (c) Biopsy section showing colocalization of angiotensin II type 1 receptor and von Willebrand factor in vascular endothelium.
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