[1] Univ Hosp Gasthuisberg Katholieke, Leuven, Belgium
[2] Tata Mem Hosp, Dept Surg Oncol, Mumbai 400012, Maharashtra, India
[3] Chinese Acad Med Sci, Beijing 100037, Peoples R China
[4] AZ St Augustinus, Oncol, Antwerp, Belgium
[5] Inst Jules Bordet, Med Oncol & Translat Res Unit, B-1000 Brussels, Belgium
[6] Wyeth Ayerst Res, Biostat, Cambridge, MA USA
[7] Wyeth Ayerst Res, Oncol, Cambridge, MA USA
[8] Dana Farber Canc Inst, Boston, MA 02115 USA