TY - GEN AU - Beer,A E AU - Billingham,R E TI - Immunoregulatory aspects of pregnancy SN - 0014-9446 PY - 1978///1027 KW - Animals KW - Chorionic Gonadotropin KW - immunology KW - Female KW - Fetus KW - Graft Rejection KW - Graft vs Host Disease KW - Humans KW - Kidney Transplantation KW - Male KW - Maternal-Fetal Exchange KW - Mice KW - Models, Biological KW - Placental Lactogen KW - Pregnancy KW - Progesterone KW - Rats KW - Transplantation, Homologous KW - Trophoblasts N1 - Publication Type: Journal Article; Research Support, U.S. Gov't, P.H.S.; Review ER -