The method 14 wherein the tube material is affixed to itself using {HEAD ~ sutures} to form {TAIL ~ a sewing cuff} 
to form
The method 14 wherein the tube material is affixed to itself using { HEAD ~ sutures } to form { TAIL ~ a sewing cuff }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL