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Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.

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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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It is difficult to obtain enough calcium without consuming milk or other dairy foods.

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In the ancient and medieval periods, dysentery killed about ? of all babies before they reach 12 months of age. The disease was transferred through contaminated drinking water, because there was no way to adequately dispose of sewage, which contaminated the water.

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More than 34,000 trademarked medication names and more than 10,000 generic medication names are in use in the United States.

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