1. Servicio de Microbiología and Unidad de Investigación, Hospital Son Espases, Instituto de Investigación Sanitaria de Palma, Palma de Mallorca, Spain
2. Wockhardt Research Centre, Aurangabad, India
3. Servicio de Microbiología, Complejo Hospitalario Universitario A Coruña, A Coruña, Spain
4. Research Service, Louis Stokes Cleveland Department of Veterans Affairs Medical Center, Cleveland, Ohio, USA
5. Division of Infectious Diseases and HIV Medicine, Department of Medicine, Case Western Reserve University School of Medicine, Cleveland, Ohio, USA
6. Departments of Pharmacology, Molecular Biology and Microbiology, and Biochemistry, Case Western Reserve University School of Medicine, Cleveland, Ohio, USA