1. Department of Oral Health & Medicine, University Center for Dental Medicine Basel; University of Basel; Basel Switzerland
2. Department of Hematology; University Hospital Basel; Basel Switzerland
3. Department of Periodontology, Endodontology and Cariology, University Center for Dental Medicine Basel; University of Basel; Basel Switzerland
4. Department of Oral and Maxillofacial Diseases; University of Helsinki and Helsinki University Hospital; Helsinki Finland
5. Department of Pathology, Haartman Institute and HUSLab; Helsinki University Central Hospital; Helsinki Finland