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Did you know?
Vaccines prevent between 2.5 and 4 million deaths every year.
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Essential fatty acids have been shown to be effective against ulcers, asthma, dental cavities, and skin disorders such as acne.
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Immunoglobulin injections may give short-term protection against, or reduce severity of certain diseases. They help people who have an inherited problem making their own antibodies, or those who are having certain types of cancer treatments.
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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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The horizontal fraction bar was introduced by the Arabs.
![Effective listening skills demonstrate empathy to the patient and break down barriers to communicati](https://biology-forums.com/gallery/47/medium_380792_21_05_16_2_07_16_235551577.jpeg)
![The patient is placed between the X-ray tube, which emits a cone-shaped X-ray beam, and the film or ...](https://biology-forums.com/gallery/47/medium_660366_13_03_17_1_49_40_26864601.jpeg)