1. Department of Periodontology, Faculty of Dental Medicine, Iuliu Hațieganu University of Medicine and Pharmacy Cluj-Napoca, Victor Babeș St., No. 15, 400012 Cluj-Napoca, Romania
2. Department of Gastroenterology, Iuliu Hațieganu University of Medicine and Pharmacy Cluj-Napoca, “Prof. Dr. Octavian Fodor” Regional Institute of Gastroenterology and Hepatology, Croitorilor St., No. 19, 400394 Cluj-Napoca, Romania
3. Department of Periodontology, University of Medicine and Pharmacy Craiova, Petru Rareș St., No. 2, 200349 Craiova, Romania
4. Department of Rheumatology, Iuliu Hațieganu University of Medicine and Pharmacy Cluj-Napoca, Clinicilor St., No. 2, 400000 Cluj-Napoca, Romania
5. Department of Periodontology, Faculty of Dental Medicine, Anton Sculean Research Center for Periodontal and Peri-Implant Diseases, Victor Babeș University of Medicine and Pharmacy Timișoara, Revoluției from 1989 St., No. 9, 300041 Timișoara, Romania