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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.
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Of the estimated 2 million heroin users in the United States, 600,000–800,000 are considered hardcore addicts. Heroin addiction is considered to be one of the hardest addictions to recover from.
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Cyanide works by making the human body unable to use oxygen.
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Illicit drug use costs the United States approximately $181 billion every year.
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The horizontal fraction bar was introduced by the Arabs.