In 1864, the first barbiturate (barbituric acid) was synthesized.
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Oliver Wendell Holmes is credited with introducing the words "anesthesia" and "anesthetic" into the English language in 1846.
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In 2012, nearly 24 milliion Americans, aged 12 and older, had abused an illicit drug, according to the National Institute on Drug Abuse (NIDA).
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The effects of organophosphate poisoning are referred to by using the abbreviations “SLUD” or “SLUDGE,” It stands for: salivation, lacrimation, urination, defecation, GI upset, and emesis.
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Vaccines prevent between 2.5 and 4 million deaths every year.
The greenhouse effect: heat trapping by earth's atmosphere.
Earth with Rings
Time course of HIV infection.
How to find the equation of a line that is parallel to a line passing through a point