title: Chronological changes in sex steroid, gonadotropin and prolactin secretions in aging female rats displaying different reproductive states.
mesh_terms: D000375:Aging; D000728:Androgens / Q000097:blood; D000818:Animals; D000858:Anovulation / Q000097:blood; D004967:Estrogens / Q000097:blood; D004971:Estrus; D005260:Female; D012739:Gonadal Steroid Hormones / Q000097:blood*; D006065:Gonadotropins, Pituitary / Q000097:blood*; D011247:Pregnancy; D011374:Progesterone / Q000097:blood; D051381:Rats
chemical_list: D000728:Androgens; D004967:Estrogens; D012739:Gonadal Steroid Hormones; D006065:Gonadotropins, Pituitary; D011374:Progesterone