obstetric ultrasound: fetal femur length estimated from gestational age by Merz 1988 method
obstetric ultrasound: fetal femur length estimated from gestational age by merz 1988 method
obstetric ultrasound: fetal femur length estimated from gestational age by Merz 1988 method
obstetric ultrasound: fetal femur length estimated from gestational age by merz 1988 method