HEALTH

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An electronic cigarette
Smokers who want to quit commonly turn to e-cigarettes for help, but do the devices work?
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A cluster of embryonic stem cells.
Although it would be unethical, experts say it is likely biologically possible to clone a human being.
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When a child has a severe allergic reaction, what do you do?
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4-month-old fetus
Obstetric ultrasound has a fascinating history, in both technical and social terms.
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french fries
Fast-food restaurants' claim of having healthy menus falls flat in a new analysis showing that they are only marginal...
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