Comparison of eae, tir, espA and espB genes of bovine and human attaching and effacing Escherichia coli by multiplex polymerase chain reaction44, China, Bernard, Goffaux F., Pirson V., and Mainil J.G. , FEMS Microbiol.Lett., 1/9/1999, Volume 178, Issue 1, Number 182, p.177 - 182, (1999)