Physiologically important ions are called trace elements.

Of the estimated 2 million heroin users in the United States, 600,000–800,000 are considered hardcore addicts. Heroin addiction is considered to be one of the hardest addictions to recover from.

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The types of cancer that alpha interferons are used to treat include hairy cell leukemia, melanoma, follicular non-Hodgkin's lymphoma, and AIDS-related Kaposi's sarcoma.

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To combat osteoporosis, changes in lifestyle and diet are recommended. At-risk patients should include 1,200 to 1,500 mg of calcium daily either via dietary means or with supplements.

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The senior population grows every year. Seniors older than 65 years of age now comprise more than 13% of the total population. However, women outlive men. In the 85-and-over age group, there are only 45 men to every 100 women.

The Periodic Table of Elements.

Detonation is a secondary ignition of the air–fuel mixture. It is also called spark knock or ...

The illusory bands visible in this figure are often called Mach bands, although Mach used a ...

Elements Found in Organisms

Hydrogen ions control acidity

Mechanisms of action of vitamin E, one of the most important lipid-soluble antioxidants

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