{TAIL ~ Methods} and {HEAD ~ apparatus} for performing a non continuous circumferential treatment of a body lumen 
{ TAIL ~ Methods } and { HEAD ~ apparatus } for performing a non continuous circumferential treatment of a body lumen
TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH