Gastritis can be caused by an infection with _____.
a. H. pylori
b. E. coli
c. C. difficile
d. S. aureus
Question 2
Treatment of achalasia includes the use of _____, which is/are responsible for prolonging the relaxation of the LES.
a. antihistamines
b. botulinum toxin
c. epinephrine
d. proton pump inhibitors