A Jassam , M, S. Mahmood , N, Q. Mahmood S. Congenital Heart Disease In Preterm Infants. Diyala Journal of Medicine [Internet]. 2023 Dec. 25 [cited 2025 Oct. 22];25(2):180-7. Available from: https://djm.uodiyala.edu.iq/index.php/djm/article/view/1061