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Author Question: Wilma has a hearing loss that occurred in the outer or middle ear. This situation prevented sound ... (Read 2053 times)


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Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.

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The immune system needs 9.5 hours of sleep in total darkness to recharge completely.

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Although the Roman numeral for the number 4 has always been taught to have been "IV," according to historians, the ancient Romans probably used "IIII" most of the time. This is partially backed up by the fact that early grandfather clocks displayed IIII for the number 4 instead of IV. Early clockmakers apparently thought that the IIII balanced out the VIII (used for the number 8) on the clock face and that it just looked better.

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Aspirin is the most widely used drug in the world. It has even been recognized as such by the Guinness Book of World Records.

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