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drplummer drplummer
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6 years ago
Which bacteria is often the cause of stomach ulcers?
 
  a. Escherichia coli
  b. Helicobacter pylori
  c. Staphylococcus aureus
  d. Streptococcus pneumoniae
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Annie81Annie81
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6 years ago
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drplummer Author
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6 years ago
Just got PERFECT on my quiz
wrote...

Yesterday
I appreciate what you did here, answered it right Smiling Face with Open Mouth
wrote...

2 hours ago
Smart ... Thanks!
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