1. Dental Medicine Research Center, Faculty of Medicine, “Lucian Blaga” University, 550024 Sibiu, Romania
2. Department of Mathematics and Informatics, Research Center in Informatics and Information Technology, Faculty of Sciences, “Lucian Blaga” University, 550024 Sibiu, Romania
3. Department of Internal Medicine, Faculty of Medicine, “Lucian Blaga” University, 550024 Sibiu, Romania
4. Department of Oral Health, Dental Medicine Research Center, Faculty of Medicine, “Lucian Blaga” University, 550024 Sibiu, Romania