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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.
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Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.
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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 term pharmacology is derived from the Greek words pharmakon("claim, medicine, poison, or remedy") and logos ("study").
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People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.
A typical ball-peen hammer.
Coolant flow through a typical engine cooling system.
Typical hookup of a starting and charging tester.
Typical port fuel-injection system, indicating the location of various components. Notice that the ...
A typical fuel-pressure regulator that has a spring that exerts 46 pounds of force against the ...
A diagram of a typical DNA cloning plasmid