Elhabashy A. Pattern recognition for prenatal sonographic diagnosis of most congenital heart disease: the “7×2” CHD algorithm. Int J Reprod Contracept Obstet Gynecol [Internet]. 2024 Aug. 29 [cited 2025 Apr. 24];13(9):2262-8. Available from: https://www.ijrcog.org/index.php/ijrcog/article/view/14236