obstetric US: fetal weight estimated from abdominal circumference, femur length, and head circumference
obstetric us: fetal weight estimated from abdominal circumference, femur length, and head circumference
obstetric US: fetal weight estimated from abdominal circumference, femur length, and head circumference
obstetric us: fetal weight estimated from abdominal circumference, femur length, and head circumference