| http://www.w3.org/ns/prov#value | - Applicants have discovered that the degradation of an agent, a drug or a bioactive material applied to such a device may be avoided by covering the agent, drug or other bioactive material with a porous layer of a biocompatible polymer that is applied without the use of solvents, catalysts, heat or other chemicals or techniques, which would otherwise be likely to degrade or damage the agent, drug o
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