1. King Saud Medical City Riyadh Saudi Arabia
2. Aalborg University Hospital Aalborg Denmark
3. Aalborg University Aalborg Denmark
4. University Sapienza di Roma Rome Italy
5. University of Birmingham Birmingham UK
6. St James Hospitale Dublin Ireland
7. Henares Teaching Hospital Coslada Spain
8. Ethicon Raritan New Jersey USA
9. Università della Calabria, Azienda Ospedaliera di Cosenzae Arcavacata Italy
10. Vall d'Hebron Barcelona Hospital, Universitat Autònoma de Barcelona Barcelona Spain
11. University Hospitals Birmingham NHS Foundation Trust Aalborg Denmark
12. Universidad Miguel Hernández de Elche Elche Spain
13. Ethicon Norderstedt Germany
14. Ghent University Hospital Ghent Belgium
15. Ghent University Ghent Belgium