title: The authors reply.
authors.affiliation: Department of Oncology, Mälarsjukhuset, Sweden, and University of Uppsala, Sweden Department of Internal Medicine, Infectious Disease Unit, University Hospital of Heraklion, Crete, Greece.
authors.forename: Antonis
authors.initials: A
authors.lastname: Valachis
authors.forename: George
authors.initials: G
authors.lastname: Samonis
authors.forename: Diamantis P
authors.initials: DP
authors.lastname: Kofteridis
mesh_terms: D000900:Anti-Bacterial Agents / Q000627:therapeutic use*; D003091:Colistin / Q000627:therapeutic use*; D006801:Humans; D053717:Pneumonia, Ventilator-Associated / Q000188:drug therapy*
chemical_list: D000900:Anti-Bacterial Agents; D003091:Colistin