| http://www.w3.org/ns/prov#value | - ycol), poly(ethylene oxide), poly(vinyl alcohol), poly(vinylpyrrolidone), poly(ethyloxazoline), poly(ethylene oxide)-co-poly(propyleneoxide) blockcopolymers, polysaccharides or carbohydrates such as hyaluronic acid, dextran, heparin sulfate, chondroitin sulfate, heparin, or alginate, or proteins such as gelatin, collaqen, albumin, or ovalbumin.Biodegradable regions can be constructed from polymers
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