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About 100 new prescription or over-the-counter drugs come into the U.S. market every year.

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Patients who cannot swallow may receive nutrition via a parenteral route—usually, a catheter is inserted through the chest into a large vein going into the heart.

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It is difficult to obtain enough calcium without consuming milk or other dairy foods.

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Liver spots have nothing whatsoever to do with the liver. They are a type of freckles commonly seen in older adults who have been out in the sun without sufficient sunscreen.

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The Centers for Disease Control and Prevention (CDC) was originally known as the Communicable Disease Center, which was formed to fight malaria. It was originally headquartered in Atlanta, Georgia, since the Southern states faced the worst threat from malaria.

The age structure of human populations in West Africa and Western Europe, as of 2000. The age structure of human populations in West Africa and Western Europe, as of 2000.
Common Shelduck (Tadorna tadorna) is a waterfowl species shelduck genus Tadorna - Breeding male Common Shelduck (Tadorna tadorna) is a waterfowl species shelduck genus Tadorna - Breeding male
The Red-throated Bee-eater (Merops bullocki) is a species of bird in the Meropidae family. The Red-throated Bee-eater (Merops bullocki) is a species of bird in the Meropidae family.
The Human Visual Cortex The Human Visual Cortex
A wide variety of pathogens may live on or in the human body A wide variety of pathogens may live on or in the human body
Cast of a Fossil Dunkleosteus, with a human to illustrate scale Cast of a Fossil Dunkleosteus, with a human to illustrate scale
Video: Hershey Chase Experiments

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