1. Department of Family Medicine, Medical Faculty, University of Maribor, Maribor, Slovenia;
2. Department of Family Medicine, Medical Faculty, University of Ljubljana, Ljubljana, Slovenia;
3. Community Health Centre Ljubljana, Ljubljana, Slovenia;
4. GP, Sheffield, UK;
5. Irish College of General Practitioners, Dublin, Ireland;
6. Life and Health Sciences Research Institute (ICVS)/3B’s — PT Government Associate Laboratory, University of Minho, Braga, Portugal