title: "4+ normal flora" (or is it?)
authors: P I
authors: PI
authors: Tarr
mesh_terms: D004926:Escherichia coli / Q000145:classification / Q000302:isolation & purification* / Q000472:pathogenicity; D004927:Escherichia coli Infections / Q000382:microbiology; D005243:Feces / Q000382:microbiology*; D006801:Humans