1. From the Department of Medicine B and Center for Autoimmune Diseases, Sheba Medical Center, Tel-Hashomer, Sackler Faculty of Medicine, Tel Aviv University, Israel (Y.S.); RDL Reference Laboratory, Los Angeles, Calif (R.W.); Specialty Laboratories, Santa Monica, Calif (L.D.D.); and Department of Cell Chemistry, Okayama University Graduate School of Medicine and Dentistry, Okayama, Japan (E.M.).