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emphysema_ynd
under
Medical History
in
WSC variables
The next section asks about specific medical problems. Please indicate if you have been told by a doctor that you have or have had any of these conditions: Emphysema or Obstructive Lung Disease
...
(MD) said participant had emphysema? It is my understanding that emphysema or chronic bronchitis are
...
n=62 positive test when emphysema has n=132 and chronic
...