1. Helen Schneider Hospital for Women; Rabin Medical Center; Petach Tikva Israel
2. The Sackler Faculty of Medicine; Tel Aviv University; Tel Aviv Israel
3. Department of Anesthesia; Rabin Medical Center; Petach Tikva Israel
4. Lis Maternity Hospital; Tel Aviv Sourasky Medical Center; Tel Aviv Israel
5. Hillel Yaffe Medical Center; Hadera Israel
6. The Rappaport Faculty of Medicine; Technion; Haifa Israel