[1] Mem Sloan Kettering Canc Ctr, New York, NY 10021 USA
[2] Osped Morgagni Pierantoni, Forli, Italy
[3] Ist Clin Humanitas, Rozzano, Italy
[4] Tel Aviv Univ, Tel Aviv Sourasky Med Ctr, IL-69978 Tel Aviv, Israel
[5] UZ Brussel VUB, Brussels, Belgium
[6] Bayer Pharmaceut Corp, Wayne, NJ USA
[7] Bayer Schering Pharma, Wuppertal, Germany
[8] Bayer SpA PH, Milan, Italy
[9] Osped S Chiara, Pisa, Italy