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Urine turns bright yellow if larger than normal amounts of certain substances are consumed; one of these substances is asparagus.
On average, the stomach produces 2 L of hydrochloric acid per day.
The immune system needs 9.5 hours of sleep in total darkness to recharge completely.
In 1864, the first barbiturate (barbituric acid) was synthesized.
By definition, when a medication is administered intravenously, its bioavailability is 100%.
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