AMERICAN 298,268 American Lung Association : American Thoracic Society : Abstracts : 1988 Annual Meeting : May 8-11, 1988 Las Vegas, Nevada. - New York : American Lung Association, 1988. - 575 s. : wykr. ; 28 (American Review of Respiratory Disease ; vol. 137, nr 4 : Annual Meeting suppl. par t 2 of 2 parts)