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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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The use of salicylates dates back 2,500 years to Hippocrates's recommendation of willow bark (from which a salicylate is derived) as an aid to the pains of childbirth. However, overdosage of salicylates can harm body fluids, electrolytes, the CNS, the GI tract, the ears, the lungs, the blood, the liver, and the kidneys and cause coma or death.

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HIV testing reach is still limited. An estimated 40% of people with HIV (more than 14 million) remain undiagnosed and do not know their infection status.

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Children of people with alcoholism are more inclined to drink alcohol or use hard drugs. In fact, they are 400 times more likely to use hard drugs than those who do not have a family history of alcohol addiction.

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The average adult has about 21 square feet of skin.

) Intradermal drug administration: (c) the needle is inserted, bevel up at 10–15° ) Intradermal drug administration: (c) the needle is inserted, bevel up at 10–15°
First-pass effect: (a) drugs are absorbed; (b) drugs enter hepatic portal circulation and go directl First-pass effect: (a) drugs are absorbed; (b) drugs enter hepatic portal circulation and go directl
Absorption of a drug through cell membranes into the bloodstream (systemic circulation). The drug ... Absorption of a drug through cell membranes into the bloodstream (systemic circulation). The drug ...
Most drugs exhibit first-order elimination, in which the rate of drug elimination is equivalent to ... Most drugs exhibit first-order elimination, in which the rate of drug elimination is equivalent to ...
Clinically Significant Drug-Drug Interactions in Dentistry Clinically Significant Drug-Drug Interactions in Dentistry
Drug Action Through Channels, via Voltage Changes or Chemicals Drug Action Through Channels, via Voltage Changes or Chemicals
Video: Protein digestion - stomach & small intestine

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