University of Guelph - Department of Population Medicine, Hebrew University of Jerusalem - The Koret School of Veterinary Medicine, University of Guelph - Department of Population Medicine, University of Toronto - Epidemiology Division, Public Health Agency of Sweden, Public Health Agency of Sweden, Harvard University - Boston Children’s Hospital, Harvard University - Harvard Medical School, Ben-Gurion University of the Negev - Guilford Glazer Faculty of Business and Management, Hebrew University of Jerusalem - The Koret School of Veterinary Medicine, Ben-Gurion University of the Negev, University of Toronto - Epidemiology Division, University of Ottawa - Ottawa Hospital Research Institute and University of Guelph - Department of Population Medicine