prov:value
| - In one embodiment, the elution rate controlling matrix is a biostable polymer selected from the group consisting of polyurethanes, silicones, polyesters, polyolefins, polyamides, polycaprolactams, polyimides, polyvinyl chlorides, polyvinyl methyl ethers, polyvinyl alcohols, acrylic polymers, polyacrylonitriles, polystyrenes, vinyl polymers, polymers including olefins (e.g., styrene acrylonitrile c
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