Factors That Contribute To The Efficient Functioning Of The Respiratory System

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About 24 million people in the U.S. have COPD, although only half of them -- 12 million people -- have been diagnosed with the disease. Approximately 3.8 million people have emphysema. Because emphysema and chronic bronchitis so often occur together, it is difficult to determine the number of emphysema patients versus those with chronic bronchitis. Many patients, even if their symptoms are severe, regard their condition as a natural part of aging, or blame a lack of fitness, and do...

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