1. Faculty of Medicine, University of Maribor, Taborska 8, Sl-2000 Maribor, Slovenia
2. Department of Family Medicine, Faculty of Medicine, University of Ljubljana, Poljanski nasip 58, Sl-1000 Ljubljana, Slovenia
3. Community Health Centre Ljubljana, Metelkova 9, Sl-1000 Ljubljana, Slovenia
4. Faculty of Education, University of Maribor, Koroska cesta 160, Sl-2000 Maribor, Slovenia