1. Department of Periodontology, Faculty of Dental Medicine, Iuliu Hatieganu University of Medicine and Pharmacy Cluj-Napoca, Victor Babes St., No. 15, 400012 Cluj-Napoca, Romania
2. Department of Medical Informatics and Biostatistics, Iuliu Hatieganu University of Medicine and Pharmacy Cluj-Napoca, Louis Pasteur St., No. 6, 400349 Cluj-Napoca, Romania
3. Department of Prosthodontics, Faculty of Dental Medicine, Iuliu Hatieganu University of Medicine and Pharmacy Cluj-Napoca, Clinicilor St., No. 32, 400006 Cluj-Napoca, Romania
4. Department of Prevention in Dental Medicine, Faculty of Dental Medicine, Iuliu Hatieganu University of Medicine and Pharmacy Cluj-Napoca, Avram Iancu St., No. 31, 400347 Cluj-Napoca, Romania
5. Department of Cariology, Endodontics and Oral Pathology, Faculty of Dental Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, Motilor St., No. 33, 400001 Cluj-Napoca, Romania
6. Vascular Neurology and Dementia Center, University of Medicine, Essen, Hufeland St., No. 55, 45122 Essen, Germany
7. Experimental Research Center in Normal and Pathological Aging (ARES), University of Medicine and Pharmacy Craiova, 200349 Craiova, Romania
8. Department of Periodontology, Anton Sculean Research Center of Periodontal and Peri-Implant Diseases, Faculty of Dental Medicine, Victor Babes University of Medicine and Pharmacy Timisoara, Bulevardul Revolutiei din 1989, No. 9, 300230 Timisoara, Romania