Zeb, Kiran, Asma Razzaq, Misbah Fakih, and Muhammad Shoaib. “Comparison of Nasal Tragus Length and Formula For Correctness of Endotracheal Tube Placement in Neonates”. Pakistan Armed Forces Medical Journal 75, no. SUPPL-2 (March 25, 2025): S198-S201. Accessed August 8, 2025. https://www.pafmj.org/PAFMJ/article/view/5644.