1. Weill Medical College of Cornell University, New York-Presbyterian Hospital, New York, New York
2. University Medical Center Hamburg-Eppendorf, Hamburg, Germany
3. University of Montreal, Montreal, Quebec, Canada
4. General Hospital of Bolzano, Bolzano, Italy
5. University of Texas Southwestern Medical Center, Dallas, Texas
6. Penn State Milton S. Hershey Medical Center, Hershey, Pennsylvania
7. Hospital Korneuburg, Vienna, Austria
8. University of Rennes, Rennes, France
9. University of Vienna, Vienna, Austria
10. M.D. Anderson Cancer Center, Houston, Texas
11. Keio University School of Medicine, Tokyo, Japan
12. McGill University, Montreal, Quebec, Canada