[1]
A. W. Liao, M. de L. Brizot, H. J. Kang, R. A. Assunção, and M. Zugaib, “Longitudinal reference ranges for fetal ultrasound biometry in twin pregnancies”, Clinics, vol. 67, no. 5, pp. 451–455, Jan. 2012, doi: 10.6061/clinics/2012(05)08.