Blood-based tumor mutational burden as a biomarker for atezolizumab in non-small cell lung cancer: the phase 2 B-F1RST trial

Edward S. Kim, Vamsidhar Velcheti, Tarek Mekhail, Cindy Yun, Sarah M. Shagan, Sylvia Hu, Young Kwang Chae, Ticiana A. Leal, Jonathan E. Dowell, Michaela L. Tsai, Christopher S.R. Dakhil, Philip Stella, Yanling Jin, David S. Shames, Erica Schleifman, David A. Fabrizio, See Phan, Mark A. Socinski