[1] Sandro Pitigliani Med Onc Unit, Prato, Italy
[2] Inst Nacl Enfermedades Neoplas, Lima, Peru
[3] Allama Iqbal Med Coll, Lahore, Pakistan
[4] Latvijas Onkol Ctr, Rga, Latvia
[5] GlaxoSmithKline, Collegeville, PA USA
[6] Univ Calif Los Angeles, Geffen Sch Med, Los Angeles, CA USA