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