[1] Mem Sloan Kettering Canc Ctr, New York, NY USA
[2] Netherlands Canc Inst, Antoni Van Leeuwenhoek, Amsterdam, Netherlands
[3] Ghent Univ Hosp, Ghent, Belgium
[4] Univ Navarra Clin, Pamplona, Spain
[5] Merus NV, Utrecht, Netherlands
[6] Univ Hosp Fdn Jimenez Diaz, START Madrid FJD, Madrid, Spain