The electrodes 12 can be constructed from any conductive material such as copper, iron, and aluminum The electrodes 12 should also be constructed with {HEAD ~ sufficient stiffness} for manipulating {TAIL ~ the tissue surface} 
for manipulating
The electrodes 12 can be constructed from any conductive material such as copper , iron , and aluminum The electrodes 12 should also be constructed with { HEAD ~ sufficient stiffness } for manipulating { TAIL ~ the tissue surface }
OTH OTH OTH OTH OTH OTH 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 HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL