1. Department of Histology and Embryology, Faculty of Medicine, Masaryk University, Brno 625 00, Czech Republic
2. Laboratory of Molecular Morphogenesis, Institute of Animal Physiology and Genetics, v.v.i., Czech Academy of Sciences, Brno 602 00, Czech Republic
3. Institute of Analytical Chemistry, v.v.i., Czech Academy of Sciences, Brno 602 00, Czech Republic
4. Department of Chemistry, Faculty of Science, Masaryk University, Brno 625 00, Czech Republic
5. Section of Animal Physiology and Immunology, Department of Experimental Biology, Faculty of Science, Masaryk University, Brno 625 00, Czech Republic