[1] Univ Cologne, Innere Med Klin 3, D-50924 Cologne, Germany
[2] Univ Leeds, Leeds, W Yorkshire, England
[3] Weill Cornell Med Coll, New York, NY USA
[4] Stanford Univ, Sch Med, Stanford Canc Ctr, Stanford, CA 94305 USA
[5] US Oncol Res, Springfield, OR USA
[6] Fred Hutchinson Canc Res Ctr, Seattle, WA 98104 USA
[7] Hofstra North Shore LIJ Sch Med, New Hyde Pk, NY USA
[8] Mem Sloan Kettering Canc Ctr, New York, NY 10021 USA
[9] Univ Calif San Diego, Moores Canc Ctr, La Jolla, CA 92093 USA
[10] Sarah Cannon Res Inst, Nashville, TN USA
[11] Univ Vita Salute San Raffaele, Ist Sci San Raffaele, Milan, Italy
[12] Univ Calif Los Angeles, David Geffen Sch Med, Los Angeles, CA 90095 USA
[13] Florida Canc Specialists, Englewood, CO USA
[14] Columbia Univ, Med Ctr, New York, NY USA
[15] Lyon Sud Univ Hosp, Lyon, France
[16] Royal Liverpool Univ Hosp, Liverpool, Merseyside, England
[17] Univ Texas MD Anderson Canc Ctr, Houston, TX 77030 USA
[18] Georgetown Univ Hosp, Lombardi Comprehens Canc Ctr, Washington, DC 20007 USA
[19] Gilead Sci GmbH, Martinsried, Germany