1. Laboratorium voor Microbiologie, Universiteit Gent, K. L. Ledeganckstraat 35, B-9000 Gent, Belgium
2. Culture Collection, Department of Clinical Bacteriology, University of Göteborg, Göteborg, Sweden
3. BCCM/LMG Culture Collection, Laboratorium voor Microbiologie Gent, Universiteit Gent, Belgium
4. Department of Medical Microbiology, University of Edinburgh, Edinburgh, UK
5. Department of Medical Microbiology, University Hospital UIA, Antwerp, Belgium