[1] Sarcoma Oncol Ctr, Santa Monica, CA USA
[2] Ctr Leon Berard, F-69373 Lyon, France
[3] Inst Gustave Roussy, Villejuif, France
[4] Univ Penn, Philadelphia, PA 19104 USA
[5] Univ Iowa, Iowa City, IA USA
[6] Ctr Oscar Lambret, F-59020 Lille, France
[7] Duke Univ, Med Ctr, Durham, NC USA
[8] Inst Bergonie, Bordeaux, France
[9] Univ Arizona, Arizona Canc Ctr, Tucson, AZ USA
[10] HELIOS Klinikum Bad Saarow, Sarcoma Ctr Berlin Brandenburg, Bad Saarow Pieskow, Germany
[11] Ctr Rene Gauducheau, F-44035 Nantes, France
[12] Merck Res Labs, N Wales, PA USA
[13] Merck Sharp & Dohme Ltd, N Wales, PA USA
[14] ARIAD Pharmaceut, Cambridge, MA USA
[15] Dana Farber Canc Inst, Boston, MA 02115 USA