{HEAD ~ The wire} has a diameter of from about 0.1 to about 0.5 millimeters and is formed from {TAIL ~ platinum}, iridium, or a platinum/iridium alloy 
is formed from
{ HEAD ~ The wire } has a diameter of from about 0.1 to about 0.5 millimeters and is formed from { TAIL ~ platinum } , iridium , or a platinum / iridium alloy
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH REL REL REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH