Battery supply ground is in common with one of the defibrillator leads, and conventional pacers provide pacer pulses with {HEAD ~ respect} to {TAIL ~ battery ground} 
to
Battery supply ground is in common with one of the defibrillator leads , and conventional pacers provide pacer pulses with { HEAD ~ respect } to { TAIL ~ battery ground }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL