1. Beterem, National Center for Child Safety and Health, Box 7050, IL-49170 Petach Tiqva, Israel
2. School of Public Health, Haifa University, Haifa, Israel
3. Department of Sociology and Anthropology, Bar Ilan University, Ramat Gan, Israel
4. Department of Emergency Medicine, Schneider Children's Medical Center of Israel, Petach Tiqva and Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
5. Barbara and David Kipper Institute of Immunology and Allergy, Schneider Children's Medical Center of Israel, Petach Tiqva and Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
6. National Institute of Child Health and Human Development, Faculty of Health Sciences, Ben Gurion University of the Negev, Beer-Sheva and Office of the Medical Director, Division for Mental Retardation, Ministry of Social Affairs, Jerusalem, Israel