1. Faculty of Mathematics, Natural Sciences and Information Technologies University of Primorska Koper Slovenia
2. Department of Family Medicine, Faculty of Medicine University of Ljubljana Ljubljana Slovenia
3. Department of Stomatology University Medical Centre Ljubljana Ljubljana Slovenia
4. Department of Family Medicine, Faculty of Medicine University of Maribor Maribor Slovenia
5. Community Health Centre Ljubljana Ljubljana Slovenia
6. Department of Psychiatry and Behavioural Sciences Stanford University School of Medicine Stanford California USA
7. Institute of Pharmacology and Experimental Toxicology, Faculty of Medicine Ljubljana University of Ljubljana Ljubljana Slovenia