1. Department of Neurology; Barzilai Medical Center; Ashkelon Israel
2. Ben Gurion University of the Negev; Beer Sheva Israel
3. Goldschleger Eye Institute; Sheba Medical Center; Ramat Gan Israel
4. Sackler Faculty of Medicine; Tel Aviv University; Tel Aviv Israel
5. Radiology Department; Sheba Medical Center; Ramat Gan Israel