The B-complex vitamins and vitamin C are not stored in the body and must be replaced each day.
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Medication errors are more common among seriously ill patients than with those with minor conditions.
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Patients who have been on total parenteral nutrition for more than a few days may need to have foods gradually reintroduced to give the digestive tract time to start working again.
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Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.
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Oliver Wendell Holmes is credited with introducing the words "anesthesia" and "anesthetic" into the English language in 1846.
True-color view of Mars seen through NASA's Hubble Space Telescope in 1999
Temperature and Color
Contested Space: Exclaves
How to sketch a quadratic equation using transformations after completing the square (Question 1)