%0 Journal Article
%T Methods in a longitudinal cohort study of late reproductive age women: the Penn Ovarian Aging Study (POAS)
%A Ellen W. Freeman
%A Mary D. Sammel
%J Archive of "Women's Midlife Health".
%D 2016
%R 10.1186/s40695-016-0014-2
%X The online version of this article (doi:10.1186/s40695-016-0014-2) contains supplementary material, which is available to authorized users
%K Menopause
%K Menopause transition
%K Menopausal symptoms
%K Reproductive hormones
%K Midlife cohort
%U https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6299955/