Varolarn, Vimonwan. “Nursing care in preterm infants with Patent Ductus Arteriosus”. Thai Journal of Cardio-Thoracic Nursing 33, no. 1 (September 24, 2022): 2–18. accessed September 20, 2026. https://he02.tci-thaijo.org/index.php/journalthaicvtnurse/article/view/249860.