[1] US Oncol, Tyler, TX USA
[2] Univ Chicago, Chicago, IL 60637 USA
[3] Univ Clin Charite, Berlin, Germany
[4] Univ Pittsburgh, Inst Canc, Pittsburgh, PA 15260 USA
[5] Free Univ Brussels, Hop Erasme, B-1070 Brussels, Belgium
[6] State Univ Ghent Hosp, B-9000 Ghent, Belgium
[7] Hosp Munchen Bogenhausen, Munich, Germany
[8] Eli Lilly & Co, Indianapolis, IN 46285 USA
[9] US Oncol, Tucson, AZ USA
[10] Univ Arizona, Arizona Canc Ctr, Tucson, AZ USA