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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.

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Acetaminophen (Tylenol) in overdose can seriously damage the liver. It should never be taken by people who use alcohol heavily; it can result in severe liver damage and even a condition requiring a liver transplant.

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The Babylonians wrote numbers in a system that used 60 as the base value rather than the number 10. They did not have a symbol for "zero."

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Vaccines cause herd immunity. If the majority of people in a community have been vaccinated against a disease, an unvaccinated person is less likely to get the disease since others are less likely to become sick from it and spread the disease.

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Hip fractures are the most serious consequences of osteoporosis. The incidence of hip fractures increases with each decade among patients in their 60s to patients in their 90s for both women and men of all populations. Men and women older than 80 years of age show the highest incidence of hip fractures.

Acromegaly. Acromegaly is a metabolic disorder in which excessive amounts of growth hormone are secr Acromegaly. Acromegaly is a metabolic disorder in which excessive amounts of growth hormone are secr
The early hominin evolution The early hominin evolution
In 2008, the U.S. economy suffered a gaping wound as several trillion dollars were ripped out of it. In 2008, the U.S. economy suffered a gaping wound as several trillion dollars were ripped out of it.
Checklist of Developmental Skills: Birth to 5 years Checklist of Developmental Skills: Birth to 5 years
Poverty rates have declined in the last 50 years, and the biggest decline has been for people 65 and ... Poverty rates have declined in the last 50 years, and the biggest decline has been for people 65 and ...
Projections of the Racial-Ethnic Makeup of the U.S. Population Projections of the Racial-Ethnic Makeup of the U.S. Population
Video: Fractures Animation

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