TY - JOUR AU - Pretorius, D H; Nelson, T R; Baergen, R N TI - Imaging of placental vasculature using three-dimensional ultrasound and color power Doppler: A preliminary study JO - Ultrasound Obstet Gynecol VL - 12 PY - 1998 DO - 10.1046/j.1469-0705.1998.12010045.x L3 - PubMed-ID: 9697284 SP - 45 EP - 49 N1 - et al. ER -