{HEAD ~ A preferred material} for cuff retention ring 40 is {TAIL ~ a cobalt nickel chromium molybdenum alloy} known as MP 35N, but other high strength biocompatible metals including alloys of cobalt or of titanium may be used 
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{ HEAD ~ A preferred material } for cuff retention ring 40 is { TAIL ~ a cobalt nickel chromium molybdenum alloy } known as MP 35N , but other high strength biocompatible metals including alloys of cobalt or of titanium may be used
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH