{HEAD ~ The sewing cuff} preferably is composed of {TAIL ~ at least an outer layer} of fabric since fabric typically provides good tissue ingrowth 
preferably is composed of
{ HEAD ~ The sewing cuff } preferably is composed of { TAIL ~ at least an outer layer } of fabric since fabric typically provides good tissue ingrowth
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH