Batirel, A., Balkan, I., Karabay, O., et al. (2014) Comparison of Colistin-Carbapenem, Colistin-Sulbactam, and Colistin plus Other Antibacterial Agents for the Treatment of Extremely Drug-Resistant Acinetobacter baumannii Blood Stream Infections. European Journal of Clinical Microbiology & Infectious Diseases, 33, 1311-1322.