1. Pediatric Specialist Clinic, Clalit Health Services, Jerusalem District, Jerusalem, Israel
2. Department of Pediatrics, Shaare Zedek Medical Center, Jerusalem, Israel
3. Medical Students, Faculty of medicine, Technion, Haifa, Israel
4. Department of Obstetrics and Gynecology, Hadassah-Hebrew University Medical Center, Jerusalem, Israel
5. Health Information Center, Clalit Health Services, Jerusalem, Israel
6. Department of Pediatrics, Hadassah-Hebrew University Medical Center, Jerusalem, Israel