Frequency modulation of follicle-stimulating hormone (FSH) during the luteal-follicular transition: evidence for FSH control of inhibin B in normal women. - Welt,C.K.; Martin,K.A.; Taylor,A.E.; Lambert-Messerlian,G.M.; Crowley,W.F.; Smith,J.A.; Schoenfeld,D.A.; Hall,J.E. (J Clin Endocrinol Metab, 1997)