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Children with strabismus (crossed eyes) can be treated. They are not able to outgrow this condition on their own, but with help, it can be more easily corrected at a younger age. It is important for infants to have eye examinations as early as possible in their development and then another at age 2 years.
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In 1844, Charles Goodyear obtained the first patent for a rubber condom.
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The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.
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The familiar sounds of your heart are made by the heart's valves as they open and close.
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Fewer than 10% of babies are born on their exact due dates, 50% are born within 1 week of the due date, and 90% are born within 2 weeks of the date.