{HEAD ~ The tubular section} between {TAIL ~ the two expanded head} may resiliently expand, and may also be balloon expanded or otherwise plastically deformed to enlarge the flow through lumen of the tubular section 
between
{ HEAD ~ The tubular section } between { TAIL ~ the two expanded head } may resiliently expand , and may also be balloon expanded or otherwise plastically deformed to enlarge the flow through lumen of the tubular section
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL 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 OTH OTH OTH