1. Keck-USC School of Medicine; Los Angeles; California
2. Oregon Health and Science University; Portland; Oregon
3. Pontchaillou Hospital; Rennes
4. Centre Hospitalo-Universitaire; Grenoble; France
5. Hospital Donostia; San Sebastian
6. University Hospital Getafe; Madrid
7. University Hospital La Fe; Valencia; Spain
8. Alexion Pharmaceuticals, Inc.; Cheshire; Connecticut; USA
9. Leeds Teaching Hospitals; Leeds; UK