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Intradermal injections are somewhat difficult to correctly administer because the skin layers are so thin that it is easy to accidentally punch through to the deeper subcutaneous layer.
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On average, the stomach produces 2 L of hydrochloric acid per day.
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People often find it difficult to accept the idea that bacteria can be beneficial and improve health. Lactic acid bacteria are good, and when eaten, these bacteria improve health and increase longevity. These bacteria included in foods such as yogurt.
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Cytomegalovirus affects nearly the same amount of newborns every year as Down syndrome.
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Asthma cases in Americans are about 75% higher today than they were in 1980.