1. Department of Obstetrics and Gynecology, The Rabin Medical Center (Beilinson Campus), Petach Tiqvah, Israel.
2. Department of Neonatology, The Sackler School of Medicine, Tel Aviv, Israel.
3. Department of Neonatology, The Shaare Zedek Medical Center, Jerusalem, Israel.
4. Department of Pediatrics, Faculty of Medicine, Hebrew University of Jerusalem, Jerusalem, Israel.