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Endocrinology|May 1, 1985
Relation of circulating estradiol and progesterone to gonadotropin secretion and estrous cyclicity in aging female ratsJ K Lu, P S LaPolt, T E Nass, et al.The New England Journal of Medicine|June 19, 1986
Biologic effects of transdermal estradiolR J Chetkowski, D R Meldrum, K A Steingold, et al.Pageof 3