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In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.

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For high blood pressure (hypertension), a new class of drug, called a vasopeptidase blocker (inhibitor), has been developed. It decreases blood pressure by simultaneously dilating the peripheral arteries and increasing the body's loss of salt.

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Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.

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The training of an anesthesiologist typically requires four years of college, 4 years of medical school, 1 year of internship, and 3 years of residency.

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Ether was used widely for surgeries but became less popular because of its flammability and its tendency to cause vomiting. In England, it was quickly replaced by chloroform, but this agent caused many deaths and lost popularity.

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Video: Frequency of stimulation and force (Recruitment of motor units and force)

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