1. Department of Internal Medicine B and Center for Autoimmune Diseases, Sheba Medical Center, Sacklea Faculty of Medicine, Tel Aviv University, Tel-Hashomer, Israel
2. Department of Internal Medicine B and Center for Autoimmune Diseases, Sheba Medical Center, Sacklea Faculty of Medicine, Tel Aviv University, Tel-Hashomer, Israel; Department of Medicine B, Tel-Hashomer, Ramat-Gan 52621, Israel. Tel: / 972 3 5302652; Fax: / 972 3 5352885