C A. Chambers, et.al., Cytotoxic T lymphocyte antigen-4 (CTLA-4) regulates primary and secondary peptide-specific CD4(+) T cell responses., Proceedings of the National Academy of Sciences of the United States of America, 1999, 96
C A. Chambers, et.al., Cytotoxic T lymphocyte antigen-4 (CTLA-4) regulates primary and secondary peptide-specific CD4(+) T cell responses., Proceedings of the National Academy of Sciences of the United States of America, 1999, 96