Peripheral burst of tumor-specific cytotoxic T lymphocytes and infiltration of metastatic lesions by memory CD8+ T cells in melanoma patients receiving interleukin 12. by Mortarini, R, Borri, A, Tragni, G, Bersani, I, Vegetti, C, Bajetta, E, Pilotti, S, Cerundolo, V, Anichini, A