re: #767 Obdicut

Then cite them, as I asked.

Because you asked.

Petra A et al. From the Decidual Cell Internet: Trophoblast-Recognizing T Cells (1999) Biol. Of Reproduction 60, 227-233 (Which incorporates the next three refs in a review article).

Billingham RE. Transplantation immunity and the maternal-fetal relation. N Engl J Med 1964; 270:667–672.

Clark DA. Controversies in reproductive immunology. Crit Rev Immunol 1991; 11:215–247.

Bell SC, Billington WD. Humoral immune response in murine pregnancy. V. Relationship to the differential immunogenicity of placental
and fetal tissues. J Reprod Immunol 1986; 9:289–295.

None of this likely changes your fundamental point. Or mine.