?:definition
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Biological dressings made of an acellular matrix derived from animal tissues. These dressings are typically a matrix of extracellular components (e.g., collagen, proteoglycans, elastins) derived from animal (e.g., pig) or human cadaver skin. Acellular matrix dressings are intended to maintain a moist wound environment, absorb wound exudates, and promote wound healing; they are used as skin substitutes in the management of wounds such as ulcers.
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