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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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It is widely believed that giving a daily oral dose of aspirin to heart attack patients improves their chances of survival because the aspirin blocks the formation of new blood clots.

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As of mid-2016, 18.2 million people were receiving advanced retroviral therapy (ART) worldwide. This represents between 43–50% of the 34–39.8 million people living with HIV.

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More than 4.4billion prescriptions were dispensed within the United States in 2016.

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Russia has the highest death rate from cardiovascular disease followed by the Ukraine, Romania, Hungary, and Poland.

On average, the ratio of carbon to nitrogen is much higher in terrestrial plants than in other major On average, the ratio of carbon to nitrogen is much higher in terrestrial plants than in other major
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Video: Control of ventilation rate by other brain centers (posts, hypothalamus & cerebral cortex)

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