Reproductive hormones in the early menopausal transition: relationship to ethnicity, body size, and menopausal status.
Randolph JF, Sowers M, Gold EB, Mohr BA, Luborsky J, Santoro N, McConnell DS, Finkelstein JS, Korenman SG, Matthews KA, Sternfeld B, Lasley BL. Reproductive hormones in the early menopausal transition: relationship to ethnicity, body size, and menopausal status. J Clin Endocrinol Metab. 2003 Apr; 88(4):1516-22.