TY - JOUR AU - Pretorius, D H; House, M; Nelson, T R TI - Evaluation of normal and abnormal lips in fetuses: Comparison between three- and two-dimensional sonography JO - Am J Roentgenol VL - 165 PY - 1995 DO - 10.2214/ajr.165.5.7572510 SP - 1233 EP - 1237 N1 - et al. ER -