title: Monitoring reproductive aging in a 5-year prospective study: aggregate and individual changes in steroid hormones and menstrual cycle lengths with age.
authors.forename: Rebecca J
authors.initials: RJ
authors.lastname: Ferrell
mesh_terms: D000375:Aging / Q000502:physiology*; D005260:Female; D012739:Gonadal Steroid Hormones; D006728:Hormones / Q000378:metabolism*; D006801:Humans; D008597:Menstrual Cycle / Q000502:physiology*
chemical_list: D012739:Gonadal Steroid Hormones; D006728:Hormones