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Vaccines prevent between 2.5 and 4 million deaths every year.

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In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.

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Adolescents often feel clumsy during puberty because during this time of development, their hands and feet grow faster than their arms and legs do. The body is therefore out of proportion. One out of five adolescents actually experiences growing pains during this period.

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There can actually be a 25-hour time difference between certain locations in the world. The International Date Line passes between the islands of Samoa and American Samoa. It is not a straight line, but "zig-zags" around various island chains. Therefore, Samoa and nearby islands have one date, while American Samoa and nearby islands are one day behind. Daylight saving time is used in some islands, but not in others—further shifting the hours out of sync with natural time.

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Certain topical medications such as clotrimazole and betamethasone are not approved for use in children younger than 12 years of age. They must be used very cautiously, as directed by a doctor, to treat any child. Children have a much greater response to topical steroid medications.

Body plan of a common rotifer, Philodina genus Body plan of a common rotifer, Philodina genus
kidney/ nephron kidney/ nephron
Palpation of the Right Kidney Palpation of the Right Kidney
Common Laboratory Tests and Their Normal Values Common Laboratory Tests and Their Normal Values
Common Root Words and Combining Forms Common Root Words and Combining Forms
Common substances for scrubs and/or body polishes. Common substances for scrubs and/or body polishes.
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