1. Section for Periodontology, Microbiology, and Community Dentistry, Department of Odontology, Faculty of Health Sciences, University of Copenhagen, Denmark
2. Section for Oral Medicine, Department of Odontology, Faculty of Health Sciences, University of Copenhagen, Denmark
3. Department of Medical Microbiology, Copenhagen University Hospital, Copenhagen, Denmark
4. The Forsyth Institute, Cambridge, MA, USA
5. Department of Oral Medicine, Infection & Immunity, Harvard School of Dental Medicine, Boston, MA, USA
6. Section for Cariology, Department of Odontology, Faculty of Health Sciences, University of Copenhagen, Denmark