[1] Univ Rostock, Rostock, Germany
[2] Onkol Gemeinschaftspraxis, Frankfurt, Germany
[3] Univ Heidelberg, D-6900 Heidelberg, Germany
[4] Univ Wurzburg, D-97070 Wurzburg, Germany
[5] Univ Essen Gesamthsch, Essen, Germany
[6] Univ Munster, D-4400 Munster, Germany
[7] Univ Leipzig, D-7010 Leipzig, Germany
[8] Univ Munich, Klinikum Innenstadt, D-8000 Munich, Germany
[9] Oncol Informat Serv, Freiburg, Germany
[10] ORTHO BIOTECH, Neuss, Germany