1. Department of Chemistry, Bar-Ilan University, Ramat-Gan 52900, Israel
2. Dept. Bioquímica, E.U. Optica, Universidad Complutense de Madrid, c/Arcos de Jalon s/n, E-28037 Madrid, Spain
3. Biochemistry Department, 540E Bond Life Sciences Center, University of Missouri, Columbia, Missouri 65211
4. Centre de Recherche en Rhumatologie et Immunologie, Centre Hospitalier Universitaire de Québec, Université Laval, Québec, QC, Canada