P03.06: Prospective validation of the use of three-dimensional ultrasound for fetal gender determination in the first trimester. - Youssef, A.; De Musso, F.; Montaguti, E.; Cariello, L.; Salsi, G.; Maroni, E.; Pilu, G.; Rizzo, N.; Ghi, T. (Ultrasound in Obstetrics & Gynecology, 2012)