1. Faculty of Dental Medicine, Victor Babes University of Medicine and Pharmacy, 300041 Timisoara, Romania
2. Teacher Training Department, Politehnica University Timisoara, 300596 Timisoara, Romania
3. Faculty of Medicine, Victor Babes University of Medicine and Pharmacy, 300041 Timisoara, Romania
4. Faculty of Psychology, Tibiscus University of Timisoara, 300559 Timisoara, Romania