| http://www.w3.org/ns/prov#value | - ions, Y-shaped portions, and W-shaped portions; and at least one connecting link attaches each cylindrical ring to an adjacent cylindrical ring, the connecting links being positioned substantially within the cylindricial walls of the cylindrical rings and, wherein at least one of the connecting links is a high-mass link having a non-linear shape; wherein the stent is a unitary structure formed fro
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