Environmental and health studies in swine confinement buildings.
D000382:Agricultural Workers' Diseases / Q000503:physiopathology*; D000818:Animals; D001991:Bronchitis / Q000503:physiopathology*; D006799:Housing, Animal; D006801:Humans; D012129:Respiratory Function Tests; D012907:Smoking; D011795:Surveys and Questionnaires; D013552:Swine