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Versatile use of bovine pericardium in clinical cardiovascular surgery requires processing, especially cross-linking, to make the tissue non antigenic and mechanically strong. Forty-nine bovine pericardia were made acellular and then cross-linked by two different methods, group A (20) with formalin and group B (29) with heparin and subsequently, as a final measure, five of group B pericardia were...
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