1. Department of Obstetrics and Gynecology Baruch Padeh Medical Center Poriya, Affiliated with Azrieli Faculty of Medicine Poriya Israel
2. Azrieli Faculty of Medicine Bar‐Ilan University Safed Israel
3. Department of Obstetrics and Gynecology Emek Medical Center Afula Israel
4. Rappaport Faculty of Medicine, Technion Haifa Israel
5. Clinical Microbiology Laboratory Baruch Padeh Medical Center Poriya, Affiliated with Azrieli Faculty of Medicine Poriya Israel
6. Immunology Laboratory Emek Medical Center Afula Israel