1. Olomouc University Social Health Institute Palacky University Olomouc Olomouc Czech Republic
2. Department of Paediatric Haematology Haemophilia Comprehensive Care Centre Children's University Hospital Brno and Masaryk University Brno Czech Republic
3. Institute of Psychology Czech Academy of Sciences Praha Czech Republic
4. First Department of Internal Medicine Faculty of Medicine Comenius University Bratislava Bratislava Slovak Republic