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.
The estimated fraction of the CD4 T cells from the total CD4 T cell number under assumption 2 that PD-L1 blockade increases the number of specific precursor cells for all five analysed blood donors is shown. Iso, isotype control; block, PD-L1 blockade.
