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Home Q & A Board Biology-Related Homework Help Medicine Dentistry
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madmadmad madmadmad
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6 years ago
The two most frequent causes of ulcers are
 
  a. Helicobacter pylori and stress.
  b. Helicobacter pylori and smoking.
  c. Helicobacter pylori and NSAIDs.
  d. Helicobacter pylori and alcohol.
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kjhgfdwrertkjhgfdwrert
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6 years ago
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madmadmad Author
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6 years ago
this is exactly what I needed
kater28
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Yesterday
Smart ... Thanks!
ky
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2 hours ago
Just got PERFECT on my quiz
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