| http://www.w3.org/ns/prov#value | - The annular support members 212 are preferably spring members having predetermined radii and are preferably constructed of a material such as Nitinol in a superelastic, shape set annealed condition. [0034] The tubular graft 215 is preferably formed of a biocompatible, low-porosity woven fabric, such as a woven polyester.
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