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Malaria was not eliminated in the United States until 1951. The term eliminated means that no new cases arise in a country for 3 years.
It is difficult to obtain enough calcium without consuming milk or other dairy foods.
Multiple experimental evidences have confirmed that at the molecular level, cancer is caused by lesions in cellular DNA.
If all the neurons in the human body were lined up, they would stretch more than 600 miles.
Though methadone is often used to treat dependency on other opioids, the drug itself can be abused. Crushing or snorting methadone can achieve the opiate "rush" desired by addicts. Improper use such as these can lead to a dangerous dependency on methadone. This drug now accounts for nearly one-third of opioid-related deaths.