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(A, B) Distribution and degradation of OG (A) and OGGP3 (B) hydrogels in infarcted hearts. The yellow dotted line in the H&E and Masson's trichrome staining images indicates the location of the hydrogel. The images under high magnification are from the black dotted frame of the images under low magnification. Yellow arrows indicate undegraded hydrogels and green arrows indicate degraded hydrogels.
