| http://www.w3.org/ns/prov#value | - The researchers drew data from the Tucson Epidemiological Study of Airway Obstructive Disease (TESAOD), a large, population-based, prospective study initiated in 1972 that enrolled 3,805 individuals from 1,655 households in the Tucson area in an effort to assess prevalence rates and risk factors of respiratory and other chronic diseases.
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