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The Babylonians wrote numbers in a system that used 60 as the base value rather than the number 10. They did not have a symbol for "zero."
Once thought to have neurofibromatosis, Joseph Merrick (also known as "the elephant man") is now, in retrospect, thought by clinical experts to have had Proteus syndrome. This endocrine disease causes continued and abnormal growth of the bones, muscles, skin, and so on and can become completely debilitating with severe deformities occurring anywhere on the body.
More than 30% of American adults, and about 12% of children utilize health care approaches that were developed outside of conventional medicine.
More than 34,000 trademarked medication names and more than 10,000 generic medication names are in use in the United States.
Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.