1. Department of Histology and Embryology, Faculty of Medicine, Masaryk University, Kamenice 3, Brno 62500, Czech Republic;
2. Institute of Genetic Medicine, International Centre for Life, Newcastle University, Central Parkway, Newcastle upon Tyne, NE1 3BZ, UK;
3. Department of Anesthesiology, University of California, San Diego, La Jolla, CA 92093, USA;
4. International Clinical Research Center, St Annés University Hospital, Brno 62500, Czech Republic