1. Professor of Microbiology, Cardiff School of Health Sciences, Cardiff Metropolitan University, Western Avenue, Cardiff, CF5 2YB, S. Wales, UK
2. Professor, University of Copenhagen, Faculty of Health Sciences, Department of International Health, Immunology and Microbiology, Blegdamsvej 3B, DK 2200, Copenhagen, Denmark
3. Head of Biofilm Test Facility, Department of Clinical Microbiology 9301, Juliane Mariesvej 22, Copenhagen University Hospital, Copenhagen, Denmark