Ampornsitthikul, Chotchuang, and Panus Binsirawanich. 2021. “Accessories material for prevention or nasal alar necrosis risk reduction From nasotracheal intubation”. Thai Journal of Otolaryngology Head and Neck Surgery 21 (2):31-45. https://he02.tci-thaijo.org/index.php/rcotJ/article/view/249327.