1 Department of Specialistic, Diagnostic and Experimental Medicine, Unit of Vascular Surgery, University of Bologna, Policlinico S. Orsola Malpighi, Bologna, Italy. Electronic address: [email protected].
2 Department of Specialistic, Diagnostic and Experimental Medicine, Unit of Vascular Surgery, University of Bologna, Policlinico S. Orsola Malpighi, Bologna, Italy.