1. Department of Cardiac Surgery, L'Institut Mutualiste Montsouris, Paris, France
2. Department of Cardiovascular Sciences, University of Leicester, Clinical Sciences Wing, Glenfield Hospital, Leicester, UK
3. Department of Cardiac Surgery, Bristol Heart Institute, Bristol, UK
4. Department of Cardiac Surgery, Charles University Hospital in Prague, Faculty of Medicine, Hradec Kralove, Czech Republic
5. Vascular Surgery Unit, Hospital Foch, Suresnes, France