Ramlan, Andi Ade Wijaya, Adhrie Sugiharto, and Agus Mutakim. “Accuracy of Pediatric Advanced Life Support Method for Predicting the Depth of Endotracheal Tube in Indonesian Children”. Medical Journal of Indonesia 30, no. 2 (June 11, 2021): 123–8. Accessed September 27, 2021. https://mji.ui.ac.id/journal/index.php/mji/article/view/3835.