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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.
Although not all of the following muscle groups are commonly used, intramuscular injections may be given into the abdominals, biceps, calves, deltoids, gluteals, laterals, pectorals, quadriceps, trapezoids, and triceps.
The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.
Illicit drug use costs the United States approximately $181 billion every year.
When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.