Dana-Farber Cancer Institute, Boston, Massachusetts, United States
University of California, San Francisco, San Francisco, California, United States
Children's Hospital Colorado, Aurora, Colorado, United States
University of Chicago, Chicago, Illinois, United States
Mayo Clinic, Rochester, Minnesota, United States
University of California Los Angeles, Los Angeles, California, United States
Georgia Cancer Center, Augusta, Georgia, United States
Institut Catala d'Oncologia, Barcelona, Spain
Hospital Clinico U San Carlos (HSC), Madrid, Spain
START Madrid-HM CIOCC Hospital Universitario, Madrid, Spain