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Thyroid conditions may make getting pregnant impossible.

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According to the American College of Allergy, Asthma & Immunology, more than 50 million Americans have some kind of food allergy. Food allergies affect between 4 and 6% of children, and 4% of adults, according to the CDC. The most common food allergies include shellfish, peanuts, walnuts, fish, eggs, milk, and soy.

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Vaccines prevent between 2.5 and 4 million deaths every year.

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In 2012, nearly 24 milliion Americans, aged 12 and older, had abused an illicit drug, according to the National Institute on Drug Abuse (NIDA).

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There are major differences in the metabolism of morphine and the illegal drug heroin. Morphine mostly produces its CNS effects through m-receptors, and at k- and d-receptors. Heroin has a slight affinity for opiate receptors. Most of its actions are due to metabolism to active metabolites (6-acetylmorphine, morphine, and morphine-6-glucuronide).

Relationship between fruit radius and beak length in populations of native and introduced species of Relationship between fruit radius and beak length in populations of native and introduced species of
Fruit Fruit
Estimating Daily Caloric Expenditure Estimating Daily Caloric Expenditure
Fresh Fruit vs. Dried Fruit Fresh Fruit vs. Dried Fruit
Assembling Cakes (5 of 6) Assembling Cakes (5 of 6)
Fruit fly Fruit fly
Video: Molecules, Membrane Permeability and Structure

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