Timothy A. Yap, MBBS, PhD, MRCP, BS., et al. Improved Progression-Free and Overall Survival (PFS/OS) in Patients (pts) with Emergence of JTX-2011 (vopratelimab) Associated Biomarker (ICOS high CD4 T cells) on the ICONIC Trial. Presented at AACR Annual Meeting, April 2, 2019.