Detection and Characterization of Shiga Toxigenic <i>Escherichia coli</i> by Using Multiplex PCR Assays for <i>stx</i> <sub>1</sub> , <i>stx</i> <sub>2</sub> , <i>eaeA</i> , Enterohemorrhagic <i>E. coli hlyA</i> , <i>rfb</i> <sub>O111</sub> , and <i>rfb</i> <sub>O157</sub>
Distribution of the number of citations over years.