Siriussawakul, Arunotai. “The Role of Ultrasonography in Confirming Position of Endotracheal Tube when Interpreted by Emergency Medicine Residents”. Siriraj Medical Journal 67, no. 5 (October 5, 2015). accessed September 18, 2026. https://he02.tci-thaijo.org/index.php/sirirajmedj/article/view/55221.