Shirly Anitha, G. Fatima, S. Lakshmi, and C. Danny Darlington. “Pulse Oximetry As a Simple Diagnostic Test for Persistent Pulmonary Hypertension of Newborn in Limited Resource Settings”. International Journal of Contemporary Pediatrics 3, no. 2 (December 28, 2016): 452–455. Accessed October 8, 2025. https://www.ijpediatrics.com/index.php/ijcp/article/view/264.