title: Spread of an unusual penicillin- and imipenem-resistant but ampicillin-susceptible phenotype among Enterococcus faecalis clinical isolates.
authors.forename: Evgenia
authors.initials: E
authors.lastname: Metzidie
authors.forename: Evangelos N
authors.initials: EN
authors.lastname: Manolis
authors.forename: Spyros
authors.initials: S
authors.lastname: Pournaras
authors.forename: Danai
authors.initials: D
authors.lastname: Sofianou
authors.forename: Athanassios
authors.initials: A
authors.lastname: Tsakris
mesh_terms: D000667:Ampicillin / Q000494:pharmacology; D000900:Anti-Bacterial Agents / Q000494:pharmacology*; D003428:Cross Infection / Q000453:epidemiology / Q000382:microbiology*; D004196:Disease Outbreaks; D024901:Drug Resistance, Multiple, Bacterial; D013293:Enterococcus faecalis / Q000187:drug effects*; D016908:Gram-Positive Bacterial Infections / Q000453:epidemiology / Q000382:microbiology*; D006115:Greece; D006785:Hospitals, University; D006801:Humans; D015378:Imipenem / Q000494:pharmacology; D008826:Microbial Sensitivity Tests; D010406:Penicillins / Q000494:pharmacology
chemical_list: D000900:Anti-Bacterial Agents; D010406:Penicillins; D015378:Imipenem; D000667:Ampicillin