title: Use of small urine samples to monitor pregnanediol excretion in normal women: measurement of pregnanediol to oestrogen ratios.
mesh_terms: D000328:Adult; D003338:Corpus Luteum / Q000502:physiology; D004967:Estrogens / Q000652:urine*; D005260:Female; D006801:Humans; D008598:Menstruation; D010050:Ovarian Function Tests; D011276:Pregnanediol / Q000008:administration & dosage*; D013997:Time Factors
chemical_list: D004967:Estrogens; D011276:Pregnanediol