1. Department of Obstetrics and Gynecology Tel Aviv Sourasky Medical Centre Lis Maternity Hospital Tel Aviv Israel
2. Sackler Faculty of Medicine Tel Aviv University Tel Aviv Israel
3. Neonatology Department Tel Aviv Sourasky Medical Centre Dana Dwek Children’s Hospital Tel Aviv Israel
4. Virology Laboratory Division of Medical Microbiology Tel Aviv Sourasky Medical Centre Tel Aviv Israel