In one example, {TAIL ~ the at least one medical treatment electrode} 24 and 26 is {HEAD ~ a copper electrode} which has been nickel plated and then gold plated 
In one example , { TAIL ~ the at least one medical treatment electrode } 24 and 26 is { HEAD ~ a copper electrode } which has been nickel plated and then gold plated
OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH