Ultraschall in der Medizin - European Journal of Ultrasound, Table of Contents Ultraschall Med 2019; 40(06): 772DOI: 10.1055/a-0967-5282 Letter to the Editor © Georg Thieme Verlag KG Stuttgart · New York Response to Letter to the Editor Josef Wisser 1 Clinic of Obstetrics, University-Hospital Zürich , Jouzas Kurmanavicius 1 Clinic of Obstetrics, University-Hospital Zürich , Johannes Knitza 2 Clinic of Internal Medicine 3, University Hospital Erlangen, Germany › Author Affiliations Recommend Article Abstract Buy Article Letter to: Which reference ranges should one use for fetal biometry?Ultraschall Med 2019; 40(06): 771-771DOI: 10.1055/a-0967-4660 Full Text References References 1 Knitza J, Kurmanavicius J, Faschingbauer F. et al. Comparison of Current Swiss Fetal Biometry Reference Charts with Reference Charts from 1999. Are Fetuses Getting Bigger?. Ultraschall in Med 2018; 2 Kurmanavicius J, Wright EM, Royston P. et al. Fetal ultrasound biometry: 1. Head reference values. Br J Obstet Gynaecol 1999; 106: 126-135 3 Salomon LJ, Bernard JP, Duyme M. et al. The impact of choice of reference charts and equations on the assessment of fetal biometry. Ultrasound Obstet Gynecol 2005; 25: 559-565 4 Balsyte D, Schaffer L, Burkhardt T. et al. Continuous independent quality control for fetal ultrasound biometry provided by the cumulative summation technique. Ultrasound Obstet Gynecol 2010; 35: 449-455