1. Faculty of Medicine, Vilnius University, Vilnius, Lithuania;
2. Centre of Reconstructive Vascular and Endovascular Surgery, Vilnius University Hospital Santaros Clinics, Vilnius, Lithuania;
3. Department of Vascular Surgery, Cardiovascular Research Unit, Hospitalsenhed Midt, Viborg, Denmark;
4. Centre of Heart and Chest Surgery, Vilnius University Hospital Santaros Clinics, Vilnius, Lithuania