[1] Harvard Med Sch, Brigham & Womens Hosp, Boston, MA 02115 USA
[2] Cent S Univ, Xiangya Hosp, Changsha, Peoples R China
[3] Vall dHebron Inst Oncol, Barcelona, Spain
[4] Univ Hosp, West German Canc Ctr, Essen, Germany
[5] Shanghai Changzheng Hosp, Shanghai, Peoples R China
[6] JiaoTong Univ, Sch Med, Shanghai, Peoples R China
[7] Dana Farber Canc Inst, Boston, MA 02115 USA
[8] Hosp Univ Virgen del Rocio, Seville, Spain
[9] OHSU Knight Canc Inst, Portland, OR USA