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Drug abusers experience the following scenario: The pleasure given by their drug (or drugs) of choice is so strong that it is difficult to eradicate even after years of staying away from the substances involved. Certain triggers may cause a drug abuser to relapse. Research shows that long-term drug abuse results in significant changes in brain function that persist long after an individual stops using drugs. It is most important to realize that the same is true of not just illegal substances but alcohol and tobacco as well.

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The strongest synthetic topical retinoid drug available, tazarotene, is used to treat sun-damaged skin, acne, and psoriasis.

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The modern decimal position system was the invention of the Hindus (around 800 AD), involving the placing of numerals to indicate their value (units, tens, hundreds, and so on).

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In Eastern Europe and Russia, interferon is administered intranasally in varied doses for the common cold and influenza. It is claimed that this treatment can lower the risk of infection by as much as 60–70%.

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Between 1999 and 2012, American adults with high total cholesterol decreased from 18.3% to 12.9%

hepatitis fecal shedding hepatitis fecal shedding
Hepatitis and HIV/AIDS Hepatitis and HIV/AIDS
The effects of alcoholism on the body systems. The effects of alcoholism on the body systems.
Jaundice seen in the eyes and the skin of a patient with hepatitis A. Jaundice seen in the eyes and the skin of a patient with hepatitis A.
Levels of hepatitis A antigens and antibody after infection. Levels of hepatitis A antigens and antibody after infection.
Hepatitis B antigens and antibody in an acutely infected patient with recovery. Note the indicators ... Hepatitis B antigens and antibody in an acutely infected patient with recovery. Note the indicators ...
Video: Introduction to Dysrhythmia

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