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APA Citation
Mitchell, E., O'Mahony, M., Lynch, D., Ward, L. R., Rowe, B., Uttley, A., Rogers, T., Cunningham, D. G., & Watson, R. (1989). large outbreak of food poisoning caused by Salmonella typhimurium definitive type 49 in mayonnaise.. BMJ, 298(6666), 99–101. http://access.bl.uk/ark:/81055/vdc_100137835747.0x000023