Proceedings: Observations on obstructive lung disease in Scandinavia.
D000293:Adolescent; D000328:Adult; D000485:Allergens / Q000032:analysis; D000906:Antibodies / Q000032:analysis; D006801:Humans; D008173:Lung Diseases, Obstructive / Q000188:drug therapy / Q000453:epidemiology; D008875:Middle Aged; D013548:Sweden
D000485:Allergens; D000906:Antibodies