| http://www.w3.org/ns/prov#value | - 85263 *Dec 19, 1997Nov 16, 1999Enzon, Inc.Substantially pure histidine-linked protein polymer conjugatesUS5985265 *Jun 20, 1997Nov 16, 1999Amgen Inc.Attaching a polyethylene glycol molecule to a consensus interferon molecule via reductive alkylation.US5998378 *Apr 19, 1994Dec 7, 1999Chiron CorporationCompounds having proteolytic inhibitory activity useful for treating diseases, particularly as app
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