1. University of Liege; 4000 Liege Belgium
2. University of Paris VII Diderot; 75018 Paris France
3. Guy's and St Thomas' Hospital; London SE1 9RT UK
4. ETH-PSI-USZ Paul-Scherrer-Institute; 5232 Villigen-PSI Switzerland
5. Innsbruck Medical University; 6020 Innsbruck Austria
6. University Medical Center; University of Groningen; 9700 RB Groningen Netherlands
7. CHU de Nantes; 44093 Nantes France
8. University Hospital Basel; 4031 Basel Switzerland
9. University Medical Centre Ljubljana; 1000 Ljubljana Slovenia
10. Università di Milano-Bicocca; 20052 Monza Italy
11. Universitetssjukhuset; 581 85 Linköping Sweden