OC20.04: Assessment of facial height and facial width in the second and third trimester of pregnancy, preliminary results

A. G. den Boogert1, E. de Jong-Pleij1, L. S. Ribbert1, L. R. Pistorius2, M. Bakker4, E. Tromp3, C. M. Bilardo4 1Department of Obstetrics and Gynecology, St. Antonius Hospital, Utrecht, Netherlands; 2Fetal Medicine Unit, University Medical Centre Utrecht, Utrecht, Netherlands; 3Department of Statistics, St. Antonius Hospital, Utrecht, Netherlands; 4Fetal Medicine Unit, University Medical Centre Groningen, Groningen, Netherlands