Shrestha, Nita, Manhal Khilfeh, Rajesh Dudani, and Shou-Yien Wu. “The Practice of Umbilical Vessels Catheterization in Neonatal Intensive Care Units: A Survey”. International Journal of Contemporary Pediatrics 11, no. 3 (February 22, 2024): 256–260. Accessed October 25, 2025. https://www.ijpediatrics.com/index.php/ijcp/article/view/5869.