Relationship of serum estradiol and progesterone concentrations to the excretion profiles of their major urinary metabolites as measured by enzyme immunoassay and radioimmunoassay. - Munro,CJ.; Stabenfeldt,GH.; Cragun,JR.; Addiego,LA.; Overstreet,JW.; Lasley,BL. (Clin Chem, 1991)