1. Department of General Surgery Center of Oncology of the Lublin Region St. John of Dukla, Dr. K. Jaczewskiego St. 7, 20-090 Lublin, Poland
2. Department of Materials Engineering, Faculty of Mechanical Engineering, Lublin University of Technology, Nadbystrzycka St. 36, 20-618 Lublin, Poland
3. Independent Medical Biology Unit, Medical University of Lublin, Chodzki 6, 20-093 Lublin, Poland