1 Institute of Clinical Medicine, Faculty of Medicine, Vilnius University, Lithuania Vilnius, Lithuania. Electronic address: aiste.kielaite-gulla@mf.vu.lt.
2 Department of Surgery, Lithuanian University of Health Sciences, Kaunas, Lithuania.
3 Institute of Clinical Medicine, Faculty of Medicine, Vilnius University, Lithuania Vilnius, Lithuania.
4 Department of Surgery, Riga East Clinical University Hospital, Riga, Latvia.
5 Department of Surgery, Pauls Stradins Clinical University Hospital, Riga, Latvia.
6 Center for Surgical Oncology and General Surgery, North Estonia Medical Center Foundation, Tallinn, Estonia.
7 Institute of Chemistry and Biotechnology, Tallinn University of Technology, Tallinn, Estonia.