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Figure 2 Interstitial and perivascular collagen deposition in the myocardial region of the left ventricle, as demonstrated by Masson trichrome staining. (a, b) UN control; (c, d) DOCA-V; and (e, f) DOCA-F. Bar indicates 500 µm (left) or 100 µm (right). Abbreviations as in Figure 1.