A systematic review and meta-analysis published in The Journal of General Internal Medicine found that periodontal disease increases the risk of coronary heart disease by 24 to 34 percent. One reason might be the presence of harmful bacteria in the mouth, which not only causes gum disease but also promotes systemic inflammation throughout the body.
This article is about the Latin phrase. For the physical theory, see quantum electrodynamics. For other uses, see QED (disambiguation). Q.E.D. (also written QED) is an initialism of the Latin phrase quod erat demonstrandum, meaning what was to be demonstrated, or, less formally, thus it has been demonstrated.
quart noun [C] uk / kwÉËt / us written abbreviation qt âº MEASURES a unit of measurement for liquids, equal to approximately 1.14 litres in Britain, or 0.95 litres in the US: Consumption of ice cream and frozen desserts in the U.S. fell from 22.7 quarts per person in 2000 to 20.3 quarts per person in 2005. (Definition of âquartâ from the Cambridge Business English Dictionary Â© Cambridge University Press)