1. Molecular and Cellular Biology Graduate Program, University of Washington, Seattle, Washington, USA
2. Department of Microbiology, University of Washington, Seattle, Washington, USA
3. Department of Microbial Infection and Immunity, The Ohio State University, Columbus, Ohio, USA
4. Department of Microbiology, The Ohio State University, Columbus, Ohio, USA
5. Costerton Biofilm Center, Department of Immunology and Microbiology, Faculty of Health and Medical Science, University of Copenhagen, Copenhagen, Denmark
6. Department of Clinical Microbiology, Rigshospitalet, Copenhagen, Denmark