Comparison of Rectoanal Mucosal Swab Cultures and Fecal Cultures for Determining Prevalence of Escherichia coli O157:H7 in Feedlot Cattle

od Greenquist, M. A., Drouillard, J. S., Sargeant, J. M., Depenbusch, B. E., Shi, Xiaorong, Lechtenberg, K. F., Nagaraja, T. G.
Izdano 2005