title: Cyclic changes in plasma progestins and estrogens in squirrel monkeys.
mesh_terms: D000818:Animals; D004958:Estradiol / Q000097:blood*; D004971:Estrus; D005260:Female; D011247:Pregnancy; D011374:Progesterone / Q000097:blood; D011372:Progestins / Q000097:blood*; D012453:Saimiri; D013997:Time Factors
chemical_list: D011372:Progestins; D011374:Progesterone; D004958:Estradiol