A Silawy1, G Lavie2, S Perek2, D Zisman3, G Weber4, M Preis5, S Cohen2. 1. From the Division of Internal Medicine, Lady Davis Carmel Medical Center, Haifa, Israel, amal15us@hotmail.com. 2. From the Division of Internal Medicine, Lady Davis Carmel Medical Center, Haifa, Israel, Ruth and Bruce Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa, Israel. 3. Ruth and Bruce Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa, Israel, Rheumatic Diseases Unit, Lady Davis Carmel Medical Center, Haifa, Israel. 4. Ruth and Bruce Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa, Israel, Infectious Diseases Unit, Lady Davis Carmel Medical Center, Haifa, Israel, and. 5. Ruth and Bruce Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa, Israel, Institute of Hematology, Lady Davis Carmel Medical Center, Haifa, Israel.