1. Department of Otolaryngology-Head and Neck Surgery; Meir Medical Center; Kfar Saba Israel
2. Sackler Faculty of Medicine; Tel Aviv University; Tel Aviv Israel
3. Department of Otolaryngology-Head and Neck Surgery; The Center for Cleft Palate and Craniofacial Anomalies; Meir Medical Center; Kfar Saba Israel
4. Clinic and Policlinics for Dental, Oral and Maxillofacial Diseases of Bavarian Julius-Maximilian University Wuerzburg; University Hospital of Wuerzburg; Wuerzburg Germany
5. Pediatric Otolaryngology Unit; Department of Otolaryngology Head and Neck Surgery; Dana-Dwek Children's Hospital; Tel Aviv Sourasky Medical Center
6. Faculty of Communication Disorders; Hadassah Academic College; Jerusalem Israel