M. . Barati, N. . Nasehi, S. . Aberoumand, M. . Najafian, and A. . Emami Moghadam, “Factors causing timely referral for fetal echocardiography in the final diagnosis of congenital heart malformations: A cross-sectional study”, IJRM, vol. 20, no. 6, pp. 477–482, Jul. 2022.