obstetric US: fetal biparietal diameter estimated from gestational age by Rempen 1991 method
obstetric us: fetal biparietal diameter estimated from gestational age by rempen 1991 method
obstetric US: fetal biparietal diameter estimated from gestational age by Rempen 1991 method
obstetric us: fetal biparietal diameter estimated from gestational age by rempen 1991 method