1. Family Physician Office S&M Ltd., 31-123 Krakow, Poland
2. Polish Society of Family Medicine, 51-141 Wroclaw, Poland
3. Department of Palliative Medicine, Faculty of Medicine, Medical University of Lodz, 90-647 Lodz, Poland
4. Department of Family Medicine, Piast of Silesia Medical University, 50-367 Wroclaw, Poland