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People about to have surgery must tell their health care providers about all supplements they take.

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Human kidneys will clean about 1 million gallons of blood in an average lifetime.

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About 100 new prescription or over-the-counter drugs come into the U.S. market every year.

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Giardia is one of the most common intestinal parasites worldwide, and infects up to 20% of the world population, mostly in poorer countries with inadequate sanitation. Infections are most common in children, though chronic Giardia is more common in adults.

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Approximately 25% of all reported medication errors result from some kind of name confusion.

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