1. Section for Periodontology, Department of Odontology, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
2. Institute for Inflammation Research, Center for Rheumatology and Spine Diseases, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
3. Department of Oral Biology, Faculty of Dentistry, University of Oslo, Oslo, Norway
4. Department of Periodontology, Faculty of Odontology, Malmö University, Malmö, Sweden
5. Division of Periodontology, Department of Dental Medicine, Karolinska Institutet, Stockholm, Sweden
6. Steno Diabetes Center Copenhagen, Copenhagen, Denmark
7. Cardiology Department, Herlev and Gentofte Hospital, Hellerup, Denmark