More specifically, {HEAD ~ the invention} presents the application of lasers for noninvasive thermal coagulation and occlusion of {TAIL ~ the vas} 
More specifically , { HEAD ~ the invention } presents the application of lasers for noninvasive thermal coagulation and occlusion of { TAIL ~ the vas }
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL