Kuo H.C., H.W. Wei, C.D. Chang, C.C. Chou, C. Tu, J.W. Liao, S.K. Chang. Molecular Detection of Florfenicol and Chloramphenicol Resistance among Escherichia coli Isolate from Healthy Pigs During 2003 to 2007. Journal of Food and Drug Analysis. 17 (3): 217-224,2009.