Tumor infiltration of CD8+ T cells exhibiting a resident phenotype (CD69+ CD103+ and/or CD103+) correlates with a more favorable prognosis for various human cancers (Djenidi et al., 2015; Koh et al., 2017; Wang et al., 2015; Webb, Milne, Watson, Deleeuw, & Nelson, 2014). The gene discussed is CD8A; the disease is neoplasm.