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As the western states of America were settled, pioneers often had to drink rancid water from ponds and other sources. This often resulted in chronic diarrhea, causing many cases of dehydration and death that could have been avoided if clean water had been available.

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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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In women, pharmacodynamic differences include increased sensitivity to (and increased effectiveness of) beta-blockers, opioids, selective serotonin reuptake inhibitors, and typical antipsychotics.

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Though the United States has largely rejected the metric system, it is used for currency, as in 100 pennies = 1 dollar. Previously, the British currency system was used, with measurements such as 12 pence to the shilling, and 20 shillings to the pound.

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Multiple experimental evidences have confirmed that at the molecular level, cancer is caused by lesions in cellular DNA.

Variation in climatic conditions result in geographic variation in the distribution of biome types a Variation in climatic conditions result in geographic variation in the distribution of biome types a
Types of muscle tissue. Types of muscle tissue.
Angle of insertion for three types of injections. Angle of insertion for three types of injections.
Various types of integumentary conditions. (E) Melanoma. Various types of integumentary conditions. (E) Melanoma.
Types of wind deposits Types of wind deposits
Types of Mutations in the HBB Gene That Cause p-Thalassemia Types of Mutations in the HBB Gene That Cause p-Thalassemia
Video: Neurosynapse Animation

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