Ultrasound in Obstetrics and Gynecology, 55(1), 68-74. John Wiley and Sons Ltd for the GRIT Study Group & the TRUFFLE Study Group 2020, ' Comparative analysis of 2-year outcomes in GRIT and TRUFFLE trials ', Ultrasound in Obstetrics and Gynecology, vol. 55, no. 1, pp. 68-74 . https://doi.org/10.1002/uog.20354 Ultrasound in Obstetrics and Gynecology, 55(1), 68-74. Wiley Ultrasound in Obstetrics & Gynecology Ultrasound in obstetrics & gynecology, 55(1), 68-74. John Wiley and Sons Ltd Ganzevoort, W, van Geijn, H, Ganzevoort, W, for the GRIT Study Group & the TRUFFLE Study Group 2020, ' Comparative analysis of 2-year outcomes in GRIT and TRUFFLE trials ', Ultrasound in Obstetrics and Gynecology, vol. 55, no. 1, pp. 68-74 . https://doi.org/10.1002/uog.20354