Im SJin, Obeng RC, Nasti TH, McManus D, Kamphorst AO, Gunisetty S, Prokhnevska N, Carlisle JW, Yu K, Sica GL, et al. Characteristics and anatomic location of PD-1TCF1 stem-like CD8 T cells in chronic viral infection and cancer. Proc Natl Acad Sci U S A. 2023;120(41):e2221985120.