A murine model for negative selection of self-reactive T lymphocytes Thymic expression of viral superantigens-1 and -6 Morishima, C.; Finch, R.J.; Pullen, A.M. Journal of Cellular Biochemistry Suppl 17(Part D): 52 1993 0730-2312 https://eurekamag.com/research/029/686/029686319.php