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More than 20 million Americans cite use of marijuana within the past 30 days, according to the National Survey on Drug Use and Health (NSDUH). More than 8 million admit to using it almost every day.
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The most destructive flu epidemic of all times in recorded history occurred in 1918, with approximately 20 million deaths worldwide.
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Multiple experimental evidences have confirmed that at the molecular level, cancer is caused by lesions in cellular DNA.
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On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.
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There are more sensory neurons in the tongue than in any other part of the body.
![(A) The name and shape of the adult teeth. These teeth represent those found in the right side of th](https://biology-forums.com/gallery/47/medium_14755_10_09_12_7_07_44_84681223.jpeg)
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