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Barry Marshall and His Collaborators Showed That

Question 25

Multiple Choice

Barry Marshall and his collaborators showed that


A) lifestyle factors such as stress, diet, and smoking cause chronic gastritis and stomach ulcers.
B) lab animals are easily infected by Helicobacter pylori.
C) Helicobacter pylori bacteria are protective against peptic ulcers.
D) Helicobacter pylori bacteria cause chronic gastritis and stomach ulcers.

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