1. Department of Oral Biology; Faculty of Odontology; Malmö University; Malmö; Sweden
2. Department of Biomaterials; Sahlgrenska Academy; Gothenburg University; Gothenburg; Sweden
3. Department of Theoretical Chemistry; Lund University; Lund; Sweden
4. Department of International Health, Immunology and Microbiology; Faculty of Health Sciences; University of Copenhagen; Copenhagen; Denmark