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Multiple experimental evidences have confirmed that at the molecular level, cancer is caused by lesions in cellular DNA.
In 1844, Charles Goodyear obtained the first patent for a rubber condom.
Oliver Wendell Holmes is credited with introducing the words "anesthesia" and "anesthetic" into the English language in 1846.
Cyanide works by making the human body unable to use oxygen.
Asthma cases in Americans are about 75% higher today than they were in 1980.
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