1. Department of Pediatrics Motol University Hospital and Charles University, 2nd Faculty of Medicine Prague Czech Republic
2. Department of Probability and Mathematical Statistics, Faculty of Mathematics and Physics Charles University Prague Czech Republic
3. Department of Pediatrics University Hospital Pilsen Pilsen Czech Republic
4. Department of Pediatrics University Hospital Olomouc Olomouc Czech Republic
5. Department of Pediatrics Masaryk Hospital Ústí nad Labem Czech Republic
6. Department of Pediatrics University Hospital Hradec Králové Czech Republic
7. Department of Pediatrics 3rd Faculty of Medicine Prague Czech Republic
8. Department of Pediatrics University Hospital Brno Brno Czech Republic
9. Department of Pediatrics Hospital České Budějovice České Budějovice Czech Republic
10. Department of Pediatrics University Hospital Ostrava Ostrava Czech Republic