1. The random urine estrogen/creatinine ratio;Aubry;Obstet. Gynecol.,1975
2. Current status of estrogen assays in obstetrics and gynecology. Part 2. Estrogen assays in late pregnancy;Beischer;Obstet. Gynecol. Surv.,1972
3. Correlation between morning urinary estriol concentration and 24-hour estriol excretion;Biezenski;Obstet. Gynecol.,1976
4. Amniotic fluid hormones;Belisle,1980
5. Serum progesterone and estradiol-17β levels in premature and term labor;Cousins;Am. J. Obstet. Gynecol.,1977