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2. 3D Ultrasound in prenatal diagnosis;Merz,2004
3. Three-dimensional ultrasound in obstetrics and gynaecology; technique, possibilities and limitations;Steiner;Hum Reprod,1994
4. Importance and possibilities of multiplanar examination in three-dimensional sonography;Kratochwil,1998
5. Three-dimensional surface mode for demonstration of normal fetal anatomy in the second and third trimesters;Benoit,1998