Elhanafy, Thanaa, Nehad Nasef, Jenna Ibrahim, Rana Awadalla, Amish Jain, and Adel Mohamed. “Lung Ultrasound Assessment of Pulmonary Effects of Large Patent Ductus Arteriosus in Extremely Preterm Infants Beyond the Transitional Period”. The Ultrasound Journal 17, no. 1 (October 6, 2025): 47. Accessed January 30, 2026. https://www.mattioli1885journals.com/index.php/theultrasoundjournal/article/view/18164.