Polanska, N., Burgess, D. E., Hill, P., Bensted, J. P., & Landells, W. N. (1983). Screening for neural tube defect: False positive findings on ultrasound and in amniotic fluid.

Polanska, N., D E. Burgess, P. Hill, J P. Bensted, and W N. Landells. Screening for Neural Tube Defect: False Positive Findings On Ultrasound and in Amniotic Fluid. 1983.

Polanska, N., et al. Screening for Neural Tube Defect: False Positive Findings On Ultrasound and in Amniotic Fluid. 1983.