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2. Prospective changes in lung function in grain elevator workers in large terminals in Vancouver;Chan-Yeung;J Allergy Clin Immunol,1989
3. A follow-up study of grain elevator workers in the port of Vancouver;Chan-Yeung;Arch Environ Health,1981
4. Respiratory abnormalities among grain workers;Chan-Yeung;Chest,1979
5. Grain elevator workers show work-related pulmonary function changes and dose-effect relationship with dust exposure;Corey;Br J Ind Med,1982