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