1. Brigham and Women's Hospital, Harvard Medical School, Boston, MA; Xiangya Hospital Central South University, Changsha, China;
2. Vall d’Hebron Institute of Oncology, Barcelona, Spain;
3. Brigham and Women's Hospital, Harvard Medical School, Boston, MA;
4. West German Cancer Center, University Hospital, Essen, Germany;
5. Shanghai Changzheng Hospital and JiaoTong University School of Medicine, Shanghai, China;
6. Dana-Farber Cancer Institute, Boston, MA;
7. Hospital Universitario Virgen del Rocio, Sevilla, Spain;
8. OHSU Knight Cancer Institute, Portland, OR;