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Author Question: In a contest, two tractors pull two identical blocks of stone the same distance over identical ... (Read 5107 times) |
The longest a person has survived after a heart transplant is 24 years.
Everyone has one nostril that is larger than the other.
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.
Before a vaccine is licensed in the USA, the Food and Drug Administration (FDA) reviews it for safety and effectiveness. The CDC then reviews all studies again, as well as the American Academy of Pediatrics and the American Academy of Family Physicians. Every lot of vaccine is tested before administration to the public, and the FDA regularly inspects vaccine manufacturers' facilities.
Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.