A distal tip of the lead is smoothly deflected by advancing and withdrawing {HEAD ~ the stylet} through {TAIL ~ a distal portion} of the lead 
through
A distal tip of the lead is smoothly deflected by advancing and withdrawing { HEAD ~ the stylet } through { TAIL ~ a distal portion } of the lead
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH