795 A multicenter phase II trial (SWOG S1609, cohort 51) of ipilimumab and nivolumab in metastatic or unresectable angiosarcoma: a substudy of dual anti-CTLA-4 and anti-PD-1 blocka... oleh Michael Wagner, Howard Streicher, Elad Sharon, Razelle Kurzrock, Young Kwang Chae, Megan Othus, Sandip Patel, Edward Mayerson, Christopher Ryan, Melissa Plets, Charles Blanke, Ashish Sangal, Benjamin Powers, George Budd, Adrienne Victor, Chung-Tsen Hsueh, Rashmi Chugh, Suresh Nair, Kirsten Leu, Mark Agulnik