1. Department of Therapeutic Dentistry, Yerevan State Medical University (YSMU), Koryun Str. 2, Yerevan 0002, Armenia
2. Department of Pediatric Dentistry and Orthodontics, Yerevan State Medical University (YSMU), Koryun Str. 2, Yerevan 0002, Armenia
3. “Somnus” Neurological Clinic, Department of Neurology and Neurosurgery, National Institute of Health, Yerevan 0051, Armenia