Endocrine aspects of egg implantation in the rat.
D000818:Animals; D010064:Embryo Implantation; D004971:Estrus; D005260:Female; D011247:Pregnancy; D011270:Pregnancy, Animal; D011374:Progesterone / Q000494:pharmacology*; D011555:Pseudopregnancy; D051381:Rats
D011374:Progesterone