title: Changes in the serum levels of the gonadotrophins progesterone and estradiol during the estrous cycle of the guinea pig.
mesh_terms: D000818:Animals; D004958:Estradiol / Q000097:blood*; D004971:Estrus; D005260:Female; D005640:Follicle Stimulating Hormone / Q000097:blood; D006168:Guinea Pigs; D007986:Luteinizing Hormone / Q000097:blood; D010060:Ovulation; D011247:Pregnancy; D011374:Progesterone / Q000097:blood*
chemical_list: D011374:Progesterone; D004958:Estradiol; D007986:Luteinizing Hormone; D005640:Follicle Stimulating Hormone