[1] USC, Norris Comprehens Canc Ctr, Div Med Oncol, Los Angeles, CA USA
[2] USC, Norris Comprehens Canc Ctr, Dept Prevent Med, Los Angeles, CA USA
[3] USC, Norris Comprehens Canc Ctr, Los Angeles, CA USA
[4] Ist Toscano Tumori, Pisa, Italy
[5] Azienda Osped Univ Pisana, Pisa, Italy
[6] Univ Munich, Dept Hematol & Oncol, Munich, Germany
[7] Ludwig Maximilian Univ Munich, Ctr Comprehens Canc, Munich, Germany
[8] Univ Southern Calif, Los Angeles, CA USA