1. Department of Human Physiology and Pathophysiology, University of Warmia and Mazury in Olsztyn, 2 Oczapowskiego Street, 10-719 Olsztyn, Poland
2. Medical Biology Department, Horbachevsky Ternopil National Medical University, 2 Yu. Slovatskyi Street, 46001 Ternopil, Ukraine
3. Department of Medical Biology and Genetics, Bukovinian State Medical University, 15 Yu. Fedkovich Street, 58000 Chernivtsi, Ukraine
4. Department of Normal Anatomy, Danylo Halytsky Lviv National Medical University, 69 Pekarska Street, 79010 Lviv, Ukraine