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The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.
More than 30% of American adults, and about 12% of children utilize health care approaches that were developed outside of conventional medicine.
After 5 years of being diagnosed with rheumatoid arthritis, one every three patients will no longer be able to work.
All adults should have their cholesterol levels checked once every 5 years. During 2009–2010, 69.4% of Americans age 20 and older reported having their cholesterol checked within the last five years.
Hippocrates noted that blood separates into four differently colored liquids when removed from the body and examined: a pure red liquid mixed with white liquid material with a yellow-colored froth at the top and a black substance that settles underneath; he named these the four humors (for blood, phlegm, yellow bile, and black bile).