Amir Haddad1, Joy Feld2, Devy Zisman3. 1. Rheumatology Unit, Carmel Medical Center; haddadamir@yahoo.com. 2. Rheumatology Unit, Carmel Medical Center. 3. Rheumatology Unit, Carmel Medical Center, and The Ruth and Bruce Rappaport Faculty of Medicine, Technion, Haifa, Israel.