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Your skin wrinkles if you stay in the bathtub a long time because the outermost layer of skin (which consists of dead keratin) swells when it absorbs water. It is tightly attached to the skin below it, so it compensates for the increased area by wrinkling. This happens to the hands and feet because they have the thickest layer of dead keratin cells.
When intravenous medications are involved in adverse drug events, their harmful effects may occur more rapidly, and be more severe than errors with oral medications. This is due to the direct administration into the bloodstream.
Everyone has one nostril that is larger than the other.
A seasonal flu vaccine is the best way to reduce the chances you will get seasonal influenza and spread it to others.
Malaria was not eliminated in the United States until 1951. The term eliminated means that no new cases arise in a country for 3 years.