1. Ege University Faculty of Dentistry, Department of Oral and Maxillofacial Radiology; Bornova/Izmir Turkey
2. Chicago Cancer Center, College of Medicine, University of Illinois Department of Oral Medicine and Diagnostic Sciences, College of Dentistry and Department of Otolaryngology/Head and Neck Surgery, USA and Chicago; Illinois USA
3. Ege University Faculty of Science, Department of Statistics; Bornova/Izmir Turkey
4. Ege University Faculty of Medicine, Department of Rheumatology; Bornova/Izmir Turkey