1. Department of Clinical Immunology and Allergology St. Anne's University Hospital in Brno Brno Czech Republic
2. Faculty of Medicine Masaryk University Brno Czech Republic
3. Department of Immunology, University Hospital in Motol Charles University Prague Czech Republic
4. Institute of Clinical Immunology and Allergy University Hospital Hradec Kralove, Charles University, Faculty of Medicine in Hradec Kralove Hradec Kralove Czech Republic
5. Department of Immunology and Allergology Teaching Hospital Pilsen Czech Republic
6. Faculty of Medicine in Pilsen Charles University Pilsen Czech Republic
7. Institute of Biostatistics and Analyses, Ltd. Brno Czech Republic
8. International Clinical Research Centre St Anne's University Hospital Brno Czech Republic