Determinants of longitudinal changes in spirometric function among swine confinement operators and farmers.
Schwartz DA, Donham KJ, Olenchock SA, Popendorf WJ, Van Fossen DS, Burmeister LF, Merchant JA. Determinants of longitudinal changes in spirometric function among swine confinement operators and farmers. Am J Respir Crit Care Med. 1995 Jan; 151(1):47-53.