1. Department of Medicinal Chemistry, School of Pharmacy, The Hebrew UniversityHadassah Medical School, P.O. Box 12065, Jerusalem 91120, Israel; Department of Food Chemistry and Nutrition, School of Medicine, The Jagiellonian University, Cracow, Poland; Institute of Standards, Medical Laboratory, Ministry of Health, Jerusalem, Israel; Kaplan Medical Center, Rehovot, Israel; and Food Technology Department, University of Lleida, Lleida, Spain