TY - GEN AU - Porter,D G AU - Heap,R B AU - Flint,A P TI - Endocrinology of the placenta and the evolution of viviparity SN - 0449-3087 PY - 1983///0527 KW - Animals KW - Biological Evolution KW - Corpus Luteum KW - physiology KW - Decidua KW - Female KW - Gonadal Steroid Hormones KW - Gonadotropins KW - Mammals KW - Ovary KW - Placenta KW - Placental Hormones KW - Pregnancy KW - Prolactin KW - Relaxin KW - Reproduction N1 - Publication Type: Journal Article; Review ER -