[1] Univ Texas MD Anderson Canc Ctr, Houston, TX 77030 USA
[2] Canc Hosp Beijing, Beijing, Peoples R China
[3] Univ Duisburg Essen, W German Tumor Ctr, Essen, Germany
[4] Univ Antwerp Hosp, Edegem, Belgium
[5] East Hosp, Natl Canc Ctr, Chiba, Japan
[6] Tongji Univ, Shanghai 200092, Peoples R China
[7] Beijing Inst Canc Res, Beijing, Peoples R China
[8] AstraZeneca, Wilmington, DE USA
[9] AstraZeneca, Macclesfield, Cheshire, England
[10] Dana Farber Canc Inst, Boston, MA 02115 USA