Determination of follicle regulatory protein levels in urine during the normal menstrual cycle using an enzyme-linked immunosorbant assay. - Katt E; Fujimori K; Yanagihara D; Campeau J; Numazaki M; Holst P; Tonetta S; Rodgers K; Westhof G; Mishell D Jr (The Journal of clinical endocrinology and metabolism, 1988)