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There are over 65,000 known species of protozoa. About 10,000 species are parasitic.
The most common treatment options for addiction include psychotherapy, support groups, and individual counseling.
Medication errors are more common among seriously ill patients than with those with minor conditions.
The tallest man ever known was Robert Wadlow, an American, who reached the height of 8 feet 11 inches. He died at age 26 years from an infection caused by the immense weight of his body (491 pounds) and the stress on his leg bones and muscles.
An identified risk factor for osteoporosis is the intake of excessive amounts of vitamin A. Dietary intake of approximately double the recommended daily amount of vitamin A, by women, has been shown to reduce bone mineral density and increase the chances for hip fractures compared with women who consumed the recommended daily amount (or less) of vitamin A.