Superimposition of {TAIL ~ the first treatment zone} and the one or more additional treatment zones defines a non continuous circumferential treatment zone without formation of {HEAD ~ a continuous circumferential lesion} 
Superimposition of { TAIL ~ the first treatment zone } and the one or more additional treatment zones defines a non continuous circumferential treatment zone without formation of { HEAD ~ a continuous circumferential lesion }
OTH OTH 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 HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD