Physician: In comparing our country with two other countries of roughly the same population size, I found that even though we face the same dietary, bacterial, and stress-related causes of ulcers as they do, prescriptions for ulcer medicines in all socioeconomic strata are much rarer here than in those two countries. It' s clear that we suffer significantly fewer ulcers, per capita, than they do.
The statement 'Several other countries not covered in the physician's comparisons have more prescriptions for ulcer medication than does the physician's country' most strengthens the physician's argument.