A Pilot Study of Anti-CTLA4 Antibody Ipilimumab in Patients with Synovial Sarcoma oleh Robert G. Maki, Achim A. Jungbluth, Sacha Gnjatic, Gary K. Schwartz, David R. D’Adamo, Mary Louise Keohan, Michael J. Wagner, Kelly Scheu, Rita Chiu, Erika Ritter, Jennifer Kachel, Israel Lowy, Lloyd J. Old, Gerd Ritter