William D. Chey
William D. Chey é chefe de gastroenterologia da Michigan Medicine, reconhecido por sua pesquisa sobre as causas das úlceras pépticas, que anteriormente eram erroneamente atribuídas ao estresse e à dieta.
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Turkey:
Dr. William D. Chey explains the role of Helicobacter pylori in peptic ulcers.
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Liechtenstein:
William D. Chey describes the discovery that Helicobacter pylori causes many peptic ulcers.
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