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Vaccines prevent between 2.5 and 4 million deaths every year.
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In 1864, the first barbiturate (barbituric acid) was synthesized.
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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).
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Multiple sclerosis is a condition wherein the body's nervous system is weakened by an autoimmune reaction that attacks the myelin sheaths of neurons.
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The most common treatment options for addiction include psychotherapy, support groups, and individual counseling.