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.
Forest plots of Grade 3–5 aolpecia for Group B (PD-1/PD-L1 + chemotherapy vs chemotherapy). Subgroup analysis was put into practice based on tumor types and treatment regimen of the control group. All the data were calculated by random effect (RE) model. Involving statistical tests of the meta were 2-sided. PD-1/PD-L1 = programmed cell death-1/programmed cell death ligand 1.
