[1] Johannes Gutenberg Univ III, Mainz, Germany
[2] SC Oncol Med, Perugia, Italy
[3] Ctr Leon Berard, Leon, France
[4] Charite, D-13353 Berlin, Germany
[5] Klin Onkol, Warsaw, Poland
[6] Univ Klinikum Eppendorf, Hamburg, Germany
[7] Bayer Schering Pharma, Wuppertal, Germany
[8] Inst Gustave Roussy, Villejuif, France