Patel AD, Shingadia JB, Patel D. An observational study of abnormal findings in fetus during 11-13+6 weeks and targeted imaging for fetal anomalies ultrasonography. Int J Reprod Contracept Obstet Gynecol [Internet]. 2020 Jul. 23 [cited 2025 Dec. 3];9(8):3428-31. Available from: https://www.ijrcog.org/index.php/ijrcog/article/view/8714