1. MD Anderson Cancer Center Houston Texas
2. Klinikum Stuttgart–Olgahospital Stuttgart Germany
3. Montefiore Medical Center Bronx New York
4. University of Minnesota Minneapolis Minnesota
5. Haukeland University Hospital Bergen Norway
6. Hospital Infantil Universitario Niño Jesus Madrid Spain
7. Barretos Cancer Center Barretos Brazil
8. Military Hospital‐State Health Centre Budapest Hungary
9. Merck & Co., Inc Kenilworth New Jersey