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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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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Women are two-thirds more likely than men to develop irritable bowel syndrome. This may be attributable to hormonal changes related to their menstrual cycles.
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Throughout history, plants containing cardiac steroids have been used as heart drugs and as poisons (e.g., in arrows used in combat), emetics, and diuretics.
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The highest suicide rate in the United States is among people ages 65 years and older. Almost 15% of people in this age group commit suicide every year.
DNA Replication
DNA replication according to the AT/GC rule
DNA replication is the basis for the perpetuation of life through time
Replication Fork
Replication fork regression as a likely response to a blocking DNA lesion