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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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The National Institutes of Health have supported research into acupuncture. This has shown that acupuncture significantly reduced pain associated with osteoarthritis of the knee, when used as a complement to conventional therapies.

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Every 10 seconds, a person in the United States goes to the emergency room complaining of head pain. About 1.2 million visits are for acute migraine attacks.

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Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.

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There are approximately 3 million unintended pregnancies in the United States each year.

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