{HEAD ~ A preferred material} for {TAIL ~ cuff retention ring} 40 is 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 
for
{ HEAD ~ A preferred material } for { TAIL ~ cuff retention ring } 40 is 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 REL 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 OTH OTH OTH OTH OTH OTH OTH OTH