1. Department of Vascular Surgery; Institute of Haematology and Transfusion Medicine; Warsaw; Poland
2. Blood Coagulation Laboratory; Institute of Haematology and Transfusion Medicine; Warsaw; Poland
3. Department of General Surgery; Institute of Haematology and Transfusion Medicine; Warsaw; Poland
4. Department of Radiology; Institute of Haematology and Transfusion Medicine; Warsaw; Poland