Marshall, 
   
  I violently object to the phrase, "all medical literature indicates that 
argyria is caused by ionic silver." I have seen that phrase used too many time 
to obfuscate the facts.
   
  I probably read as much medical literature as you do and have never seen a 
statement like that !!
   
  Please do the list the honor of listing your sources. !!!!!
   
  "Ole Bob" :-(  :-(