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Stevens-Johnson syndrome and Toxic Epidermal Necrolysis syndrome are life-threatening reactions that can result in death. Complications include permanent blindness, dry-eye syndrome, lung damage, photophobia, asthma, chronic obstructive pulmonary disease, permanent loss of nail beds, scarring of mucous membranes, arthritis, and chronic fatigue syndrome. Many patients' pores scar shut, causing them to retain heat.

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The word drug comes from the Dutch word droog (meaning "dry"). For centuries, most drugs came from dried plants, hence the name.

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According to the Migraine Research Foundation, migraines are the third most prevalent illness in the world. Women are most affected (18%), followed by children of both sexes (10%), and men (6%).

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

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Certain chemicals, after ingestion, can be converted by the body into cyanide. Most of these chemicals have been removed from the market, but some old nail polish remover, solvents, and plastics manufacturing solutions can contain these substances.

The control of cellular respiration The control of cellular respiration
Negative feedback control of the female reproductive hormones Negative feedback control of the female reproductive hormones
Selected Calcium Salts Selected Calcium Salts
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).
Control of blood glucose by pancreatic hormones. Control of blood glucose by pancreatic hormones.
Skin testing. Note the spot labeled H, which is the positive histamine control, and the spot labeled ... Skin testing. Note the spot labeled H, which is the positive histamine control, and the spot labeled ...
Video: B cells and antibodies

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