In one embodiment, therapy circuit 228 delivers {TAIL ~ cardiac electrical stimulation pulses} such as pacing and {HEAD ~ cardioversion/defibrillation pulses} 
In one embodiment , therapy circuit 228 delivers { TAIL ~ cardiac electrical stimulation pulses } such as pacing and { HEAD ~ cardioversion / defibrillation pulses }
OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD