1. Clinic of Social and Family Medicine, Faculty of Medicine University of Crete, Heraklion, Crete, Greece
2. Department of Social Medicine, Faculty of Medicine, University of Crete, Heraklion, Crete, Greece
3. Faculty of Medicine, University of Crete, Crete, Greece
4. Institute of Pharmaceutical Science, School of Cancer & Pharmaceutical Sciences, King’s College London, UK
5. Primary Health Care Unit of Alonakia, Siatista, Greece