1. Institute of Medical Microbiology and Hygiene, University Hospital Tübingen, Tübingen, Germany
2. German Center for Infection Research (DZIF), Partner Site Tübingen, Tübingen, Germany
3. Bruker Daltonik GmbH, Bremen, Germany
4. Chemisches und Veterinäruntersuchungsamt Stuttgart, Fellbach, Germany
5. University of Groningen, University Medical Center Groningen, Department of Medical Microbiology, Groningen, The Netherlands