1. Second Medical Clinic, School of Medicine, Ippokration Hospital, Aristotle University of Thessaloniki Thessaloniki Greece
2. Department of Nutritional Sciences and Dietetics School of Health Sciences, International Hellenic University Thessaloniki Greece
3. Midwifery Department School of Healthcare Sciences, University of West Macedonia Koila, Kozani Greece
4. Gastroenterology Department Theageneio Hospital Thessaloniki Greece
5. Department of Business Administration University of Western Macedonia Kozani Greece