[1] Univ Cologne, Clin Internal Med 1, Koeln, Germany
[2] Hop St Joseph, Gilly Charleroi, Belgium
[3] Hop St Louis, Paris, France
[4] Univ Clin Mainz, Mainz, Germany
[5] Univ Ziekenhuis Gasthuisberg, Louvain, Belgium
[6] Dijkzigt Ziekenhuis Rotterdam, Rotterdam, Netherlands
[7] Fred Hutchinson Canc Res Ctr, Seattle, WA 98104 USA
[8] Univ Chicago, Chicago, IL 60637 USA
[9] Univ Texas, MD Anderson Canc Ctr, Houston, TX 77030 USA
[10] Univ Penn, Philadelphia, PA 19104 USA