%0 Journal Article
%T Real-world PD-L1 testing and distribution of PD-L1 tumor expression by immunohistochemistry assay type among patients with metastatic non-small cell lung cancer in the United States
%A Frank Xiaoqing Liu
%A Pallavi D. Patwardhan
%A Thomas Burke
%A Vamsidhar Velcheti
%A Xin Chen
%A Xiting Cao
%J Archive of "PLoS ONE".
%D 2018
%R 10.1371/journal.pone.0206370
%U https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6224125/