Vikman, S. .; Sommaggio, R. .; De La Torre, M. .; Öberg, K. .; Essand, M. .; Giandomenico, V. .; Loskog, A. .; Tötterman, T. H. . Midgut Carcinoid Patients Display Increased Numbers of Regulatory T Cells in Peripheral Blood With Infiltration into Tumor Tissue. AO 2009, 48, 391-400.