Břetislav Lipový1, Serhiy Forostyak2. 1. Department of Burns and Plastic Surgery, University Hospital Brno, Czech Republic; Medical Faculty, Masaryk University Brno, Czech Republic. Electronic address: bretalipovy@gmail.com. 2. PrimeCell Bioscience Inc., Dr. Slabihoudka6232/11, Ostrava-Poruba, 708 00, Czech Republic; National Tissue Centre Inc., Palachovo Náměstí 726/2, Brno, 625 00, Czech Republic.