1. Elplatek A/S Bybjergvej 7 DK‐3060 Espergærde Denmark
2. Department of Biotechnology and BiomedicineTechnical University of Denmark Søltofts Plads Bldg. 221 DK‐2800 Kgs Lyngby Denmark
3. Department of Immunology and MicrobiologyCosterton Biofilm CenterFaculty of Health and Medical SciencesUniversity of Copenhagen Blegdamsvej 3B DK‐2200 Copenhagen N Denmark
4. Department of Clinical MicrobiologyRigshospitalet Juliane Maries vej 22 2100 Copenhagen Ø Denmark