1. Department of Operative Techniques and Surgical Research, Institute of Surgery, Medical and Health Science Center, University of Debrecen, Debrecen, Hungary
2. Institute of Surgery, Medical and Health Science Center, University of Debrecen, Debrecen, Hungary
3. Department of Pathophysiology and Gerontology, University of Pécs Medical School, Hungary
4. Department of Pulmonology, Medical and Health Science Center, University of Debrecen, Debrecen, Hungary