1. Athanassakis IR, Bleackley Ch, Paetkau V, Guilbert L, Barr PJ, Wegmann TG (1987) The immunostimulatory effect of T cells and T cell lymphokines on murine fetally derived placental cells. The Journal of Immunology 138:37–44
2. Boehm KT, Kelley MF, Ilan J, Ilan J (1989) The interleukin 2 gene is expressed in the syncytiotrophoblast of human placenta. Proc Natl Acad Sci USA 85:656–660
3. Bulmer JN and Johnson PM (1986) The T-lymphocyte population in the first-trimester human decidua does not express the interleukin-2 receptor. Immunology 58:685–687
4. Herrmann SH, Weinberger O, Burakoff SJ, Mescher MF (1982) Analysis of two signal requirement for precursor cytolytic T-lymphocyte activation. J Immunology 128:1968–1974
5. James DA (1965) Effects of antigenic dissimilarity of mother and fetus on placental size in mice. Nature 205:613–614