Vafaei, H., Rafeei, K., Maryam Dalili, M. D., Asadi, N., Seirfar, N., & Akbarzadeh-Jahromi, M. (2021). Prevalence of single umbilical artery, clinical outcomes and its risk factors: A cross-sectional study. International Journal of Reproductive BioMedicine (IJRM), 19(5), 441–448. https://doi.org/10.18502/ijrm.v19i5.9253