TY - BOOK AU - Bardana,Emil J. AU - Montanaro,Anthony AU - O'Hollaren,Mark T. TI - Occupational asthma SN - 1560530170 PY - 1992/// CY - Philadelphia PB - Hanley & Belfus KW - Air Pollutants, Occupational KW - adverse effects KW - Asthma KW - etiology KW - Occupational Health ER -