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The first monoclonal antibodies were made exclusively from mouse cells. Some are now fully human, which means they are likely to be safer and may be more effective than older monoclonal antibodies.

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In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.

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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.

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Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.

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A seasonal flu vaccine is the best way to reduce the chances you will get seasonal influenza and spread it to others.

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