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In 2012, nearly 24 milliion Americans, aged 12 and older, had abused an illicit drug, according to the National Institute on Drug Abuse (NIDA).

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Though Candida and Aspergillus species are the most common fungal pathogens causing invasive fungal disease in the immunocompromised, infections due to previously uncommon hyaline and dematiaceous filamentous fungi are occurring more often today. Rare fungal infections, once accurately diagnosed, may require surgical debridement, immunotherapy, and newer antifungals used singly or in combination with older antifungals, on a case-by-case basis.

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On average, the stomach produces 2 L of hydrochloric acid per day.

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If all the neurons in the human body were lined up, they would stretch more than 600 miles.

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Illness; diuretics; laxative abuse; hot weather; exercise; sweating; caffeine; alcoholic beverages; starvation diets; inadequate carbohydrate consumption; and diets high in protein, salt, or fiber can cause people to become dehydrated.

(A) The muscle segment. (A) The muscle segment.
Control of blood glucose by pancreatic hormones. Control of blood glucose by pancreatic hormones.
Production-scale tangential flow filtration system. Production-scale tangential flow filtration system.
Global Energy Flow Global Energy Flow
Blood Supply to the Lungs Blood Supply to the Lungs
Estimating Potential Blood Volume Loss (Part 2) Estimating Potential Blood Volume Loss (Part 2)
Video: Requirements for nervous signals

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