Chronic Obstructive Pulmonary Disease, known as COPD, is a life-threatening illness commonly brought on by years of smoking. The World Health Organization estimates that more than 200 million people have been diagnosed with the illness, and that most live in low- and middle-income countries. While it isn't curable, patients' lives can be extended with treatment such as steroids. VOA's Melinda Smith says a new study shows that low doses of the medicine given by mouth are equal to, or better than, a heavy dose administered intravenously.
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