Paudel K, Nepal D, Mahaseth C. Accuracy of 7-8-9 Rule for Endotracheal Tube Placement in Nepalese Neonates. J. Nepal Paedtr. Soc. [Internet]. 2011 Sep. 20 [cited 2024 Nov. 23];31(3):175-9. Available from: https://nepjol.info/index.php/JNPS/article/view/4299