Apparatus may be positioned within a body lumen of a patient and may deliver {HEAD ~ energy} at {TAIL ~ a first lengthwise and angular position} to create a less than full circumferential treatment zone at the first position 
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Apparatus may be positioned within a body lumen of a patient and may deliver { HEAD ~ energy } at { TAIL ~ a first lengthwise and angular position } to create a less than full circumferential treatment zone at the first position
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH