obstetric US: fetal biparietal diameter estimated from gestational age by Hadlock 1984 method
obstetric us: fetal biparietal diameter estimated from gestational age by hadlock 1984 method
obstetric US: fetal biparietal diameter estimated from gestational age by Hadlock 1984 method
obstetric us: fetal biparietal diameter estimated from gestational age by hadlock 1984 method