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World J Clin Cases. Dec 16, 2022; 10(35): 12854-12874
Published online Dec 16, 2022. doi: 10.12998/wjcc.v10.i35.12854
Figure 10
Figure 10  Single umbilical artery. 29-years-old, first pregnancy, 21 wk of gestation. A: On ultrasonography, there was one artery (thin arrow) and one vein in the umbilical cord; B: Doppler ultrasonography reveals a solitary artery at the level of the bladder in the fetal pelvis (thick arrow).