Siva, P., Senthilvelan, B., Gopalakrishnan, H., & Subramanian, S. (2016). Role of pulse oximetry in screening newborns for congenital heart disease at 1 hour and 24 hours after birth. International Journal of Contemporary Pediatrics, 3(2), 631–634. https://doi.org/10.18203/2349-3291.ijcp20161053