title: Beta-endorphins in ovarian follicular fluid.
authors.forename: R L
authors.initials: RL
authors.lastname: Collins
mesh_terms: D005260:Female; D006801:Humans; D006080:Ovarian Follicle / Q000032:analysis*; D011085:Polycystic Ovary Syndrome / Q000378:metabolism; D001615:beta-Endorphin / Q000032:analysis*
chemical_list: D001615:beta-Endorphin