Oligoclonal CD4+CXCR5+ T cells with a cytotoxic phenotype appear in tonsils and blood oleh Chunguang Liang, Silvia Spoerl, Yin Xiao, Katharina M. Habenicht, Sigrun S. Haeusl, Isabel Sandner, Julia Winkler, Nicholas Strieder, Rüdiger Eder, Hanna Stanewsky, Christoph Alexiou, Diana Dudziak, Andreas Rosenwald, Matthias Edinger, Michael Rehli, Petra Hoffmann, Thomas H. Winkler, Friederike Berberich-Siebelt