1. Department of Surgical and Morphological Sciences; University of Genoa; Genoa; Italy
2. North Tyneside Hospital; North Shields; UK
3. Dr.-Horst-Schmidt-Kliniken Wiesbaden; Wiesbaden; Germany
4. Hotel Dieu-CHU de Nantes; Nantes; France
5. Haukeland University Hospital; Bergen; Norway
6. AstraZeneca R&D; Mölndal; Sweden
7. Karolinska University Hospital Huddinge; Stockholm; Sweden