1. Department of Periodontology and Synoptic Dentistry, Institute of Dental, Oral and Maxillary Medicine, Charité – University Medicine Berlin, Germany
2. Institute for Integrative and Experimental Genomics, University Medical Center Schleswig-Holstein - Campus Lübeck, Germany
3. Department of Periodontology, Clinic of Preventive Dentistry and Periodontology, University Medical Center of the Julius-Maximilians-University, Würzburg, Germany
4. Department of Operative Dentistry and Periodontology, University Medical Center Schleswig-Holstein, Campus Kiel, Germany
5. Department of Conservative Dentistry, Periodontology and Preventive Dentistry, Hannover Medical School, Hannover, Germany
6. Institute of Epidemiology and Social Medicine, University Münster, Germany
7. Institute of Medical Informatics, Biometry and Epidemiology, University Clinic Essen, Germany
8. Institute of Human Genetics, University of Bonn, Germany
9. Human Genomics Research Group, Department of Biomedicine, University Hospital of Basel, Switzerland
10. Department of Internal Medicine, Erasmus Medical Center, Rotterdam, The Netherlands
11. Department of Internal Medicine Section of Geriatrics, Amsterdam Medical Center, Amsterdam, The Netherlands
12. Department of Epidemiology and the EMGO Institute of Health and Care Research, VU University Medical Center, Amsterdam, The Netherlands
13. Division of Rheumatology, Department of Internal Medicine, University of Michigan, Ann Arbor, MI, USA
14. Center for Computational Medicine and Bioinformatics, University of Michigan Medical School, USA
15. Division of Rheumatology, Marmara University, School of Medicine, Istanbul, Turkey
16. Department of Physiology, Istanbul Medical Faculty, Istanbul University, Istanbul, Turkey
17. Department of Periodontology, Faculty of Dentistry, Kocaeli University, Turkey
18. Department of Periodontology, Faculty of Dentistry, Hacettepe University, Sihhiye, Ankara, Turkey
19. Clinic of Internal Medicine, University Clinic Schleswig-Holstein, Kiel, Germany
20. Clinic of Conservational Dentistry, Center of Dental, Oral and Maxillary Medicine, University Medical Center Carl-Gustav-Carus, Technical University Dresden, Germany
21. Institute for Community Medicine, University Medicine Greifswald, Germany
22. Unit of Periodontology, Department of Restorative Dentistry, Periodontology, Endodontology, Preventive Dentistry and Pedodontics, Dental School, University Medicine Greifswald, Germany
23. Department of Periodontology, Johann Wolfgang Goethe-University, Frankfurt am Main, Germany
24. Department of Periodontology, University Medical Center Giessen and Marburg, Germany
25. Department of Conservative Dentistry and Periodontology, Medical University Vienna, School of Dentistry, Vienna, Austria
26. Institute of Epidemiology, Biobank PopGen, Christian-Albrechts-University, Kiel, Germany
27. Institute of Clinical Molecular Biology, Christian-Albrechts-University, Kiel, Germany
28. Department of Periodontology and Oral Biochemistry, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and VU University Amsterdam, The Netherlands
29. Department of Periodontology, Operative and Preventive Dentistry, University of Bonn, Bonn, Germany