1. Department of Oral Health, Iuliu Hatieganu University of Medicine and Pharmacy, 400347 Cluj-Napoca, Romania
2. Department of Microbiology, Iuliu Hatieganu University of Medicine and Pharmacy, 400347 Cluj-Napoca, Romania
3. II-nd Department of Otolaryngology, Iuliu Hatieganu University of Medicine and Pharmacy, 400347 Cluj-Napoca, Romania