1. Hebrew University-Hadassah Braun School of Public Health and Community Medicine, Ein Kerem, Jerusalem, Israel
2. Department of Clinical Research, NeuroTrax Corporation, Modiin, Israel
3. Centre for Medical Decision Making, Ono Academic College, Kiryat Ono, Israel
4. Department of Neurology, Albert Einstein College of Medicine, Bronx, NY, USA
5. Biostatistics Unit, Gertner Institute for Epidemiology and Health Policy Research, Tel-Hashomer, Israel