1. Section of PeriodontologyDepartment of Dentistry and Oral HealthFaculty of Health SciencesAarhus University Aarhus Denmark
2. Institute for Inflammation ResearchCenter for Rheumatology and Spine DiseasesCopenhagen University Hospital Rigshospitalet Copenhagen Denmark
3. Section of Epidemiology and Public HealthDepartment of Dentistry and Oral Health, Faculty of Health SciencesAarhus University Aarhus Denmark