1. Department of Dental Medicine Division of Oral Diseases Karolinska Institutet Stockholm Sweden
2. Center of Dental Medicine University of Zürich Zürich Switzerland
3. Faculty of Health Sciences Marmara University Istanbul Turkey
4. Department of Internal Medicine Division of Rheumatology Faculty of Medicine Marmara University Istanbul Turkey
5. Department of Internal Medicine Division of Rheumatology School of Medicine Medipol University Istanbul Turkey