| http://www.w3.org/ns/prov#value | - Said annular member 41 is flared-out by a tube-expansion or drifting process, by rotary forging or by any other method of forging, in such a manner as to ensure that the portion of said member 41 which is located outside the prosthesis penetrates into, and is undetachably retained by, a recess formed by a groove 51 of an annular member 42 on which is fixed the end of a flexible hose element 44.
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