1 Pediatric Department A, Emek Medical Center, Afula.
2 Dana-Dwek Children's Hospital, Tel Aviv Sourasky Medical Center-Echilov, Tel Aviv.
3 The Edmond and Lily Safra Children's Hospital, Sheba Medical Center, Tel Aviv University, Tel Hashomer.
4 Pediatric Rheumatology Unit, Department of Pediatrics, Meir Medical Center, Kfar Saba.
5 Schneider Children's Medical Center of Israel, Petach Tikvaz.
6 The Ruth and Bruce Rappaport Faculty of Medicine, Technion - Israel Institute of Technology, Haifa, and Pediatric Rheumatology Service, Ruth Rappaport Children's Hospital, Rambam Medical Center, Haifa, Israel. [email protected].