TIGIT Marks Exhausted T Cells, Correlates with Disease Progression, and Serves as a Target for Immune Restoration in HIV and SIV Infection. - Chew, Glen M.; Fujita, Tsuyoshi; Webb, Gabriela M.; Burwitz, Benjamin J.; Wu, Helen L.; Reed, Jason S.; Hammond, Katherine B.; Clayton, Kiera L.; Ishii, Naoto; Abdel-Mohsen, Mohamed; Liegler, Teri; Mitchell, Brooks I.; et al. (PLoS Pathogens, 2016)