P. C. Panda, N. R. Mishra, S. K. Dash, B. K. Nayak, and K. Panda, “Pulse oximetry as a screening tool for congenital heart disease in neonates: A diagnostic study”, Indian J Child Health, vol. 6, no. 8, pp. 435–438, Aug. 2019, doi: 10.32677/IJCH.2019.v06.i08.010.