Linn, W S Controlled exposure of volunteers with chronic obstructive pulmonary disease to nitrogen dioxide. [electronic resource] - Archives of environmental health - 313-7 p. digital Publication Type: Journal Article; Research Support, Non-U.S. Gov't ISSN: 0003-9896 Standard No.: 10.1080/00039896.1985.10545939 doi Subjects--Topical Terms: AgedAnalysis of VarianceAtmosphere Exposure ChambersFemaleHumansLung--drug effectsLung Diseases, Obstructive--physiopathologyMaleMaximal Expiratory Flow RateMiddle AgedNitrogen Dioxide--pharmacologyOxygen--bloodPhysical ExertionPlethysmography, Whole BodySmokingSpirometryVital Capacity