[1] Krankenhaus NW Frankfurt, Frankfurt, Germany
[2] Univ Hosp Gasthuisberg, Leuven, Belgium
[3] Korea Univ, Guro Hosp, Seoul, South Korea
[4] Szent Laszlo Hosp, Budapest, Hungary
[5] Natl Canc Ctr, Gastrointestinal Med Oncol Div, Tokyo, Japan
[6] Chiba Canc Ctr, Clin Trial Promot Dept, Chiba 2608717, Japan
[7] Osaka Med Ctr Canc & Cardiovasc Dis, Gastrointestinal Oncol, Osaka, Japan
[8] Bashkortostan Clin Oncol Ctr, Ufa, Russia
[9] Seoul Natl Univ, Coll Med, Dept Internal Med, Seoul 151, South Korea
[10] Seoul Natl Univ, Coll Med, Canc Res Inst, Seoul Natl Univ Hosp, Seoul, South Korea
[11] Royal Marsden Hosp, Sutton, Surrey, England
[12] Univ Paris 05, Hop Europeen Georges Pompidou, Paris, France
[13] Aichi Canc Ctr Hosp, Dept Clin Oncol, Nagoya, Aichi 464, Japan
[14] Eli Lilly & Co, Indianapolis, IN 46285 USA
[15] ImClone Syst, Bridgewater, MA USA
[16] Eli Lilly & Co, Heidelberg, Germany
[17] Natl Canc Ctr, Exploratory Oncol Res & Clin Trial Ctr, Kashiwa, Chiba, Japan
[18] Kliniken Essen Mitte Ctr Pallat Care, Essen, Germany