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There are more bacteria in your mouth than there are people in the world.

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Giardia is one of the most common intestinal parasites worldwide, and infects up to 20% of the world population, mostly in poorer countries with inadequate sanitation. Infections are most common in children, though chronic Giardia is more common in adults.

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The horizontal fraction bar was introduced by the Arabs.

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After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.

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A serious new warning has been established for pregnant women against taking ACE inhibitors during pregnancy. In the study, the risk of major birth defects in children whose mothers took ACE inhibitors during the first trimester was nearly three times higher than in children whose mothers didn't take ACE inhibitors. Physicians can prescribe alternative medications for pregnant women who have symptoms of high blood pressure.

The five overlapping phases of the nursing process. Each phase depends on the accuracy of the other The five overlapping phases of the nursing process. Each phase depends on the accuracy of the other
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Video: Mechanisms of capillary exchange (transcytosis & bulk flow)

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