[1] Seattle Canc Care Alliance, Seattle, WA USA
[2] Univ Washington, Med Ctr, Seattle, WA 98195 USA
[3] Univ Leipzig, D-04109 Leipzig, Germany
[4] Univ Gottingen, D-37073 Gottingen, Germany
[5] Spectrum Pharmaceut, Irvine, CA USA
[6] Vrije Univ Amsterdam Med Ctr, Amsterdam, Netherlands
[7] ZNA Stuivenberg, Antwerp, Belgium
[8] Mem Sloan Kettering Canc Ctr, New York, NY 10021 USA