Biology, 14.01.2020 21:31 danny1687

Until very recently, it was thought that peptic ulcers were caused by stress, spicy foods, alcohol consumption, and excess stomach acid production. why was it controversial to suggest that a bacterium could be a root cause for peptic ulcers?
until very recently, it was thought that peptic ulcers were caused by stress, spicy foods, alcohol consumption, and excess stomach acid production. why was it controversial to suggest that a bacterium could be a root cause for peptic ulcers?

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Until very recently, it was thought that peptic ulcers were caused by stress, spicy foods, alcohol c...