obstetric US: fetal weight estimated from abdominal circumference by Vintzileos 1987 method
obstetric us: fetal weight estimated from abdominal circumference by vintzileos 1987 method
obstetric US: fetal weight estimated from abdominal circumference by Vintzileos 1987 method
obstetric us: fetal weight estimated from abdominal circumference by vintzileos 1987 method