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Complications of influenza include: bacterial pneumonia, ear and sinus infections, dehydration, and worsening of chronic conditions such as asthma, congestive heart failure, or diabetes.

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Coca-Cola originally used coca leaves and caffeine from the African kola nut. It was advertised as a therapeutic agent and "pickerupper." Eventually, its formulation was changed, and the coca leaves were removed because of the effects of regulation on cocaine-related products.

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As many as 20% of Americans have been infected by the fungus known as Histoplasmosis. While most people are asymptomatic or only have slight symptoms, infection can progress to a rapid and potentially fatal superinfection.

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Despite claims by manufacturers, the supplement known as Ginkgo biloba was shown in a study of more than 3,000 participants to be ineffective in reducing development of dementia and Alzheimer’s disease in older people.

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A cataract is a clouding of the eyes' natural lens. As we age, some clouding of the lens may occur. The first sign of a cataract is usually blurry vision. Although glasses and other visual aids may at first help a person with cataracts, surgery may become inevitable. Cataract surgery is very successful in restoring vision, and it is the most frequently performed surgery in the United States.

A giant grouper at the Georgia Aquarium, seen swimming among schools of other fish A giant grouper at the Georgia Aquarium, seen swimming among schools of other fish
Common sites of amputation. (A) Upper extremities. (B) Lower extremities. The surgeon determines th Common sites of amputation. (A) Upper extremities. (B) Lower extremities. The surgeon determines th
Adenosine triphosphate (ATP) is the most common molecule used by cells to captur Adenosine triphosphate (ATP) is the most common molecule used by cells to captur
The most common drug used to facilitate date rape is alcohol, not GHB. The most common drug used to facilitate date rape is alcohol, not GHB.
A Listing of the Expected Electron Configurations for Some of the Common Elementsa A Listing of the Expected Electron Configurations for Some of the Common Elementsa
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Video: Immune responses Animation

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