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To prove that stomach ulcers were caused by bacteria and not by stress, a researcher consumed an entire laboratory beaker full of bacterial culture. After this, he did indeed develop stomach ulcers, and won the Nobel Prize for his discovery.

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After 5 years of being diagnosed with rheumatoid arthritis, one every three patients will no longer be able to work.

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For about 100 years, scientists thought that peptic ulcers were caused by stress, spicy food, and alcohol. Later, researchers added stomach acid to the list of causes and began treating ulcers with antacids. Now it is known that peptic ulcers are predominantly caused by Helicobacter pylori, a spiral-shaped bacterium that normally exist in the stomach.

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People often find it difficult to accept the idea that bacteria can be beneficial and improve health. Lactic acid bacteria are good, and when eaten, these bacteria improve health and increase longevity. These bacteria included in foods such as yogurt.

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Critical care patients are twice as likely to receive the wrong medication. Of these errors, 20% are life-threatening, and 42% require additional life-sustaining treatments.

Some viruses that cause human diseases. Some viruses that cause human diseases.
The ovarian and uterine cycles in a human female. The ovarian and uterine cycles in a human female.
These two species of bedstraw grow predominately on different soil types: Galium saxatile (shown her These two species of bedstraw grow predominately on different soil types: Galium saxatile (shown her
The amino acid sequences of whale myoglobin and the α and β chains of human hemoglobin The amino acid sequences of whale myoglobin and the α and β chains of human hemoglobin
Genetically determined innate immunity due to the species specificity of some infections, due to ... Genetically determined innate immunity due to the species specificity of some infections, due to ...
Geese continued to follow a human around assuming their actual mothers Geese continued to follow a human around assuming their actual mothers
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