Illicit drug use costs the United States approximately $181 billion every year.
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About 3% of all pregnant women will give birth to twins, which is an increase in rate of nearly 60% since the early 1980s.
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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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In 1835 it was discovered that a disease of silkworms known as muscardine could be transferred from one silkworm to another, and was caused by a fungus.
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The people with the highest levels of LDL are Mexican American males and non-Hispanic black females.
The structure of a typical flower.
Structure and basic function of a typical vertebrate neuron and associated glial cells.
Typical hand deformities associated with rheumatoid arthritis.
A typical engine-driven cooling fan.
A typical electric cooling fan assembly showing the radiator and related components.