Verrotti, C., Caforio, E. and Gramellini, et al., D. (2007) “Ultrasound screening in second and third trimester of pregnancy: an update”, Acta Biomedica Atenei Parmensis, 78(3), pp. 229–232. Available at: https://www.mattioli1885journals.com/index.php/actabiomedica/article/view/1908 (Accessed: 24 July 2024).