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Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.

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You should not take more than 1,000 mg of vitamin E per day. Doses above this amount increase the risk of bleeding problems that can lead to a stroke.

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Fatal fungal infections may be able to resist newer antifungal drugs. Globally, fungal infections are often fatal due to the lack of access to multiple antifungals, which may be required to be utilized in combination. Single antifungals may not be enough to stop a fungal infection from causing the death of a patient.

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The U.S. Preventive Services Task Force recommends that all women age 65 years of age or older should be screened with bone densitometry.

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In most climates, 8 to 10 glasses of water per day is recommended for adults. The best indicator for adequate fluid intake is frequent, clear urination.

El Niño and areas of high marine primary production around the Galapagos Islands. Noti El Niño and areas of high marine primary production around the Galapagos Islands. Noti
California high desert cottontail eating a carrot California high desert cottontail eating a carrot
First-pass effect: (a) drugs are absorbed; (b) drugs enter hepatic portal circulation and go directl First-pass effect: (a) drugs are absorbed; (b) drugs enter hepatic portal circulation and go directl
a) Avoid placing the face cradle too high because it hyperextends and strains the neck. b) When the ... a) Avoid placing the face cradle too high because it hyperextends and strains the neck. b) When the ...
A typical distributor-type diesel injection pump showing the pump, lines, and fuel filter. A typical distributor-type diesel injection pump showing the pump, lines, and fuel filter.
A downward-sloping spark line usually indicates high secondary ignition system resistance or an ... A downward-sloping spark line usually indicates high secondary ignition system resistance or an ...
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