1. Helen Schneider Hospital for Women; Rabin Medical Center; Petach-Tikva 49100 Israel
2. Sackler Faculty of Medicine; Tel Aviv University; Tel Aviv Israel
3. ENT Unit, Schneider Children's Hospital, Rabin Medical Center; Petach-Tikva Israel
4. Ophthalmology, Schneider Children's Hospital; Rabin Medical Center; Petach-Tikva Israel