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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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Multiple experimental evidences have confirmed that at the molecular level, cancer is caused by lesions in cellular DNA.

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Long-term mental and physical effects from substance abuse include: paranoia, psychosis, immune deficiencies, and organ damage.

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As the western states of America were settled, pioneers often had to drink rancid water from ponds and other sources. This often resulted in chronic diarrhea, causing many cases of dehydration and death that could have been avoided if clean water had been available.

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In Eastern Europe and Russia, interferon is administered intranasally in varied doses for the common cold and influenza. It is claimed that this treatment can lower the risk of infection by as much as 60–70%.

Pott’s Occurs at the ankle and affects both bones of the lower leg (fibula and tibia) Pott’s Occurs at the ankle and affects both bones of the lower leg (fibula and tibia)
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How Axis Tilt Affects the Intensity of Solar Radiation How Axis Tilt Affects the Intensity of Solar Radiation
Three patterns of axonal regeneration in mammalian peripheral nerves. Three patterns of axonal regeneration in mammalian peripheral nerves.
Retinal and Its Role in Vision Retinal and Its Role in Vision
Video: The life cycle of protein

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