1. Princess Máxima Center for Pediatric Oncology & University Medical Center Utrecht, Utrecht, Netherlands
2. Istituto Nazionale Tumori IRCCS Fondazione G Pascale, Naples, Italy
3. H Lee Moffitt Cancer Center & Research Institute, Tampa, FL 33612, USA
4. West German Cancer Center at the University Hospital Essen, Essen, Germany
5. Massachusetts General Hospital, Boston, MA 02114, USA
6. Perlmutter Cancer Center at NYU Langone Health, New York, NY 10016, USA
7. University of Colorado Cancer Center, Aurora, CO 80045, USA
8. Ochsner Medical Center, New Orleans, LA 70121, USA
9. University of Auckland & Auckland City Hospital, Auckland, New Zealand
10. Hollywood Private Hospital, Edith Cowan University, Perth, Australia
11. Hospital de la Santa Creu i Sant Pau, Barcelona, Spain
12. National & Kapodistrian University of Athens, Athens, Greece
13. Melanoma Institute Australia, The University of Sydney, & Royal North Shore & Mater Hospitals, Sydney, Australia
14. Nektar Therapeutics, San Francisco, CA 94158, USA
15. Westmead & Blacktown Hospitals & Melanoma Institute Australia, The University of Sydney, Sydney, Australia
16. The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA