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Addicts to opiates often avoid treatment because they are afraid of withdrawal. Though unpleasant, with proper management, withdrawal is rarely fatal and passes relatively quickly.

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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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There are immediate benefits of chiropractic adjustments that are visible via magnetic resonance imaging (MRI). It shows that spinal manipulation therapy is effective in decreasing pain and increasing the gaps between the vertebrae, reducing pressure that leads to pain.

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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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Fatal fungal infections may be able to resist newer antifungal drugs. Globally, fungal infections are often fatal due to the lack of access to multiple antifungals, which may be required to be utilized in combination. Single antifungals may not be enough to stop a fungal infection from causing the death of a patient.

Common sites of endometriosis formation. Common sites of endometriosis formation.
Brain signals that control hunger. Brain signals that control hunger.
Feedback control of the adrenal cortex. Feedback control of the adrenal cortex.
The homeostatic control of normal body temperature (37°C or 98.6°F). The homeostatic control of normal body temperature (37°C or 98.6°F).
Biological control agent: a commercially raised parasitoid wasp about to deposit a fertilized egg in Biological control agent: a commercially raised parasitoid wasp about to deposit a fertilized egg in
Control of Molting in Crabs Control of Molting in Crabs
Video: Natural Selection, Species Isolation and Real World Example

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