1. Department of Social Medicine, School of Medicine University of Crete Heraklion Greece
2. Clinical Microbiology Laboratory Attikon University Hospital, National and Kapodistrian University of Athens Greece
3. Qatar Biobank for Medical Research, Qatar Foundation for Education, Science, and Community Development Doha Qatar
4. Department of Psychology, School of Social Sciences University of Crete Rethymnon Greece
5. Centre for Research in Environmental Epidemiology, Barcelona Institute for Global Health Barcelona Spain
6. Division of Endocrinology, Diabetes, and Metabolism, Department of Medicine, Beth Israel Deaconess Medical Center Harvard Medical School, Harvard University Boston Massachusetts USA
7. Department of Preventive Medicine University of Southern California Los Angeles California USA