Prevalence and Heterogeneity of PD-L1 Expression by 22C3 Assay in Routine Population-Based and Reflexive Clinical Testing in Lung Cancer

David Hwang, Tahani Albaqer, Rex C. Santiago, Jessica Weiss, Jeffrey Tanguay, Michael Cabanero, Y.K. Leung, Prodipto Pal, Zanobia Khan, Sally C. M. Lau, Adrian G. Sacher, Emina Torlakovic, Carol C. Cheung, Ming‐Sound Tsao