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In 1844, Charles Goodyear obtained the first patent for a rubber condom.
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In 1864, the first barbiturate (barbituric acid) was synthesized.
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Vital signs (blood pressure, temperature, pulse rate, respiration rate) should be taken before any drug administration. Patients should be informed not to use tobacco or caffeine at least 30 minutes before their appointment.
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There are more nerve cells in one human brain than there are stars in the Milky Way.
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Asthma is the most common chronic childhood disease in the world. Most children who develop asthma have symptoms before they are 5 years old.