To better guide the operator during this “walk,” the best fit between {HEAD ~ the reference template} and each of {TAIL ~ the first and second paced signals} is simultaneously displayed 
To better guide the operator during this “ walk , ” the best fit between { HEAD ~ the reference template } and each of { TAIL ~ the first and second paced signals } is simultaneously displayed
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH