1. Department of Social Medicine, School of Medicine, University of Crete, P.O. Box 2208, 71003 Iraklion, Crete, Greece
2. Faculty of Medicine, Al-Quds University, The Al-Quds Nutrition and Health Research Center, Abu Dies, West Bank, P.O. Box 20760, Jerusalem, Palestine
3. Faculty of Medicine, Al-Quds University, P.O. Box 51000, Jerusalem, Palestine
4. Faculty of Medicine, An-Najah National University, P.O. Box 7, Nablus, West Bank, Palestine
5. Department of Nutrition & Dietetics, Harokopio University of Athens, 70 El. Venizelou Avenue, Kallithea, 17671 Athens, Greece
6. Faculty of Nursing, University of Texas, 6901 Bertner Avenue, Houston, TX 77030, USA