Investigation of exhausted tumor-specific CD8 T cells in orthotopic hepatocellular carcinoma mouse model - Ostroumov, D; Wingerath, J; Woller, N; Gürlevik, E; Manns, M; Longerich, T; Kubicka, S; Kühnel, F; Wirth, T (Zeitschrift für Gastroenterologie, 2018)