{HEAD ~ The oligodynamic metal} used in {TAIL ~ accordance} with the invention is typically a heavy metal such as copper, silver, gold or their alloys including intermetallic compounds thereof 
used in
{ HEAD ~ The oligodynamic metal } used in { TAIL ~ accordance } with the invention is typically a heavy metal such as copper , silver , gold or their alloys including intermetallic compounds thereof
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH