{HEAD ~ The sensor} is mounted on {TAIL ~ a transvenous lead} extending from an implanted stimulator or monitoring device 
is mounted on
{ HEAD ~ The sensor } is mounted on { TAIL ~ a transvenous lead } extending from an implanted stimulator or monitoring device
HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH