1. Winclove Probiotics, Hulstweg 11, 1032 LB Amsterdam, The Netherlands
2. Laboratory of Microbiology, Wageningen University, Dreijenplein 10, 6703 HB Wageningen, The Netherlands
3. Department of Microbiology, Institute for Water and Wetland Research, Radboud University Nijmegen, Heyendaalseweg 135, 6525 AJ Nijmegen, The Netherlands
4. Leibniz-Institut DSMZ – Deutsche Sammlung vor Mikroorganismen und Zellkulturen GmbH, Inhoffenstraße 7B, D-38124 Braunschweig, Germany
5. Department of Surgery, University Medical Center Utrecht, P.O. Box 85500, 3508 GA Utrecht, The Netherlands
6. Department of Operating Rooms, University Medical Center St. Radboud, P.O. Box 9101, 6500 HB Nijmegen, The Netherlands
7. Laboratory for Medical Microbiology and Immunology, St. Antonius Hospital, P.O. Box 2500, 3430 EM Nieuwegein, The Netherlands