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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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Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.

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About one in five American adults and teenagers have had a genital herpes infection—and most of them don't know it. People with genital herpes have at least twice the risk of becoming infected with HIV if exposed to it than those people who do not have genital herpes.

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Glaucoma is a leading cause of blindness. As of yet, there is no cure. Everyone is at risk, and there may be no warning signs. It is six to eight times more common in African Americans than in whites. The best and most effective way to detect glaucoma is to receive a dilated eye examination.

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About 3.2 billion people, nearly half the world population, are at risk for malaria. In 2015, there are about 214 million malaria cases and an estimated 438,000 malaria deaths.

Natural selection of a population for dark coloration. Natural selection of a population for dark coloration.
A farm family in Custer, Nebraska, in 1888, a region where Populist sentiment was strong. A farm family in Custer, Nebraska, in 1888, a region where Populist sentiment was strong.
Nonverbal communications convey strong, powerful messages that may be negative or positive. Nonverbal communications convey strong, powerful messages that may be negative or positive.
The enthalpy change for converting 10.0 g of ice at -25.0 C to water at 80.0 C is ________ kJ. ... The enthalpy change for converting 10.0 g of ice at -25.0 C to water at 80.0 C is ________ kJ. ...
The large, white flowers of giant saguaro cactus (Carnegiea gigantea) produce sweet nectar. The flow The large, white flowers of giant saguaro cactus (Carnegiea gigantea) produce sweet nectar. The flow
Dark Brown Eye Color Dark Brown Eye Color
Video: How a Urinalysis is Performed

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