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The lipid bilayer is made of phospholipids. They are arranged in a double layer because one of their ends is attracted to water while the other is repelled by water.

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About one in five American adults and teenagers have had a genital herpes infection—and most of them don't know it. People with genital herpes have at least twice the risk of becoming infected with HIV if exposed to it than those people who do not have genital herpes.

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To combat osteoporosis, changes in lifestyle and diet are recommended. At-risk patients should include 1,200 to 1,500 mg of calcium daily either via dietary means or with supplements.

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The types of cancer that alpha interferons are used to treat include hairy cell leukemia, melanoma, follicular non-Hodgkin's lymphoma, and AIDS-related Kaposi's sarcoma.

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People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.

These species are all at risk of extinction. These species are all at risk of extinction.
Taking a Patient’s Oral Temperature with an Electronic Thermometer Taking a Patient’s Oral Temperature with an Electronic Thermometer
Risk for injury Risk for injury
Shope’s Model of Young Driver Crash Risks The model shows that many factors contribute to crash ris Shope’s Model of Young Driver Crash Risks The model shows that many factors contribute to crash ris
Toussaint L’Ouverture leads a revolt of slaves against the French in Haiti—the first and only major Toussaint L’Ouverture leads a revolt of slaves against the French in Haiti—the first and only major
Monopoly, patented in 1935, was an instant best-seller: Players risk all their assets in an attempt Monopoly, patented in 1935, was an instant best-seller: Players risk all their assets in an attempt
Video: Introduction to Breast Cancer

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