Ibrahim ALSUWAYFEE, K., M. AHMED, and Q. Norry MOHAMMED. “Congenital Heart Disease and Pulmonary Hypertension Among Down Syndrome Pediatric Patients”. Annals of the College of Medicine, Mosul, vol. 42, no. 1, June 2020, pp. 50-56, doi:10.33899/mmed.2020.126534.1017.