1. a British Columbia Cancer Agency Vancouver Cancer Centre, Vancouver, British Columbis, Canada;
2. b Sunnybrook Odette Cancer Centre, Toronto, Ontario, Canada;
3. c Vanderbilt University Medical Center, Nashville, Tennessee, USA;
4. d Duke University Medical Center, Durham, North Carolina, USA;
5. e Cleveland Clinic Taussig Cancer Center, Cleveland, Ohio, USA;
6. f Lombardi Comprehensive Cancer Center, Georgetown University, Washington, D.C., USA;
7. g Memorial Sloan-Kettering Cancer Center, New York, New York, USA;
8. h Dana Farber Cancer Institute, Boston, Massachusetts, USA;
9. i David Geffen School of Medicine, Los Angeles, California, USA;
10. j Pfizer Oncology, New York, New York, USA;
11. k Service Inter-Hospitalier de Cancérologie Beaujon-Bichat, Clichy, France;
12. l Brigham and Women's Hospital, Boston, Massachusetts, USA;
13. m Stony Brook University Medical Center, Stony Brook, New York, USA