1. Dental Medicine, Universitatea din Oradea Facultatea de Medicina si Farmacie, Oradea, Romania;
2. Department of Oral and Maxilo-Facial surgery and Radiology, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania;
3. Spitalul Clinic de Pneumoftiziologie Leon Daniello Cluj-Napoca, Cluj-Napoca, Romania