Helicobacter Pylori

Shawna L. Fleming‏ · I. Edward Alcamo‏

جنوری 2007 · Infobase Publishing

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For many years, doctors blamed painful stomach ulcers on stress or spicy foods. More recently, however, scientists have determined that many ulcers are actually caused by a bacterium called Helicobacter pylori. H. pylori affects more than ha