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Dalal A, DeMuro-Mercon CJ, Lewis SA, Nelson LM, Gilligan T, McLeod LD. Mixed modes of administration of the lung function questionnaire: validation in subjects with smoking history. Poster presented at the International Conference of the American Thoracic Society; May 2011.
Dalal AA, Demuro-Mercon C, Lewis S, Nelson L, Gilligan T, McLeod L. Validation of alternate modes of administration of the lung function questionnaire (LFQ) in subjects with smoking history. Int J Chron Obstruct Pulmon Dis. 2010 Dec 1;5:425-34.