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IgA antibodies protect body surfaces exposed to outside foreign substances. IgG antibodies are found in all body fluids. IgM antibodies are the first type of antibody made in response to an infection. IgE antibody levels are often high in people with allergies. IgD antibodies are found in tissues lining the abdomen and chest.
There are 20 feet of blood vessels in each square inch of human skin.
Medication errors are more common among seriously ill patients than with those with minor conditions.
In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.
Atropine, along with scopolamine and hyoscyamine, is found in the Datura stramonium plant, which gives hallucinogenic effects and is also known as locoweed.