<unk><unk>  pneumonia is approximately accounts to 5 to 10% of the chronic infiltrative lung disease in the United States. The incidence of<unk><unk>  pneumonia is approximately 1.1 per 100,000 individuals in iceland and 6-7 cases per 100,000 individuals in Canada.<unk><unk>  pneumonia commonly affects people of 50-60 years of age and rarely affects children. It affects men and women equally.
Cryptogenic organizing pneumonia epidemiology and demographics
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