Escherichia coli verotoxic:Prid:Pt:Stool:Nom:Organism specific culture
escherichia coli verotoxic:prid:pt:stool:nom:organism specific culture
Escherichia coli verotoxic:Prid:Pt:Stool:Nom:Organism specific culture
escherichia coli verotoxic:prid:pt:stool:nom:organism specific culture