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stewartt08 stewartt08
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6 years ago
All of the following are known to have the capacity to cause oral mucosal pigmentation except:
 
  a. Amalgam
  b. Bismuth
  c. Mercury vapors
  d. Penicillin
  e. Minocycline
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tiss9889tiss9889
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6 years ago
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Brilliant
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