[Proceedings: Correlation between the fetal biparietal diameter measured by ultrasonics and fetoplacental hormone].
D015068:17-Ketosteroids / Q000652:urine; D004964:Estriol / Q000652:urine; D005260:Female; D005333:Fetus; D006801:Humans; D012886:Skull / Q000196:embryology*; D014463:Ultrasonography
D015068:17-Ketosteroids; D004964:Estriol