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