{HEAD ~ A cardiac pacemaker}, defibrillator, or other programmable medical device includes {TAIL ~ a source unit} and a collection unit  
includes
{ HEAD ~ A cardiac pacemaker } , defibrillator , or other programmable medical device includes { TAIL ~ a source unit } and a collection unit
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH