FIGURE 1.
Positive PD-L1 membrane staining in NSCLC tumor tissues illustrating intensity grades (top, ×20) and PD-L1 tumor scores (bottom, ×40). NSCLC indicates non–small cell lung cancer; PD-L1, programmed cell death 1 ligand 1.
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.