CXCR4 blockade decreases CD4+ T cell exhaustion and improves survival in a murine model of polymicrobial sepsis. oleh Kimberly M Ramonell, Wenxiao Zhang, Annette Hadley, Ching-Wen Chen, Katherine T Fay, John D Lyons, Nathan J Klingensmith, Kevin W McConnell, Craig M Coopersmith, Mandy L Ford