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The modern decimal position system was the invention of the Hindus (around 800 AD), involving the placing of numerals to indicate their value (units, tens, hundreds, and so on).
Approximately 500,000 babies are born each year in the United States to teenage mothers.
People about to have surgery must tell their health care providers about all supplements they take.
A recent study has found that following a diet rich in berries may slow down the aging process of the brain. This diet apparently helps to keep dopamine levels much higher than are seen in normal individuals who do not eat berries as a regular part of their diet as they enter their later years.
By definition, when a medication is administered intravenously, its bioavailability is 100%.