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