Ferreira, V., Vaz, I., Reis, A. P., Mendes, M. J. and Rodrigues, M. do C. (2017) “Antenatal detection of single umbilical artery: what does it mean?”, NASCER E CRESCER - BIRTH AND GROWTH MEDICAL JOURNAL. Porto, Portugal, 22(3), pp. 140–144. doi: 10.25753/BirthGrowthMJ.v22.i3.10284.