title: The perimenopausal transition.
authors.affiliation: Department of Obstetrics and Gynecology, Oregon Health Sciences University, Portland 97201, USA.
authors.forename: L
authors.initials: L
authors.lastname: Speroff
mesh_terms: D003376:Counseling; D005260:Female; D006293:Health Promotion; D006801:Humans; D008597:Menstrual Cycle; D008875:Middle Aged; D017697:Premenopause / Q000502:physiology