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Patients who cannot swallow may receive nutrition via a parenteral route—usually, a catheter is inserted through the chest into a large vein going into the heart.

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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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About one in five American adults and teenagers have had a genital herpes infection—and most of them don't know it. People with genital herpes have at least twice the risk of becoming infected with HIV if exposed to it than those people who do not have genital herpes.

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More than 150,000 Americans killed by cardiovascular disease are younger than the age of 65 years.

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You should not take more than 1,000 mg of vitamin E per day. Doses above this amount increase the risk of bleeding problems that can lead to a stroke.

Schmidt-Nielsen and coworkers demonstrated the route that air travels in the avian (ostrich) lung. Schmidt-Nielsen and coworkers demonstrated the route that air travels in the avian (ostrich) lung.
Lin Chunhua, Chairman Mao en Route to Anyuan. Lin Chunhua, Chairman Mao en Route to Anyuan.
Full-term Fetus Full-term Fetus
Administration of Drugs via the Buccal Route Administration of Drugs via the Buccal Route
Post-term birth rates, by province/territory, Canada Post-term birth rates, by province/territory, Canada
These findings are from Colby and Kohlberg's long-term longitudinal study These findings are from Colby and Kohlberg's long-term longitudinal study
Video: Cerebral Cortex Animation

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