Atisook, Raviwon, Artid Samerchua, Naiyana Aroonpruksakul, Kattiya Manomayangkul, and Kasana Raksamani. 2016. “Ultrasound Study of the Airway to Predict Endotracheal Tube Size in Anesthetized Pediatric Patients”. Thai Journal of Anesthesiology 41 (3):131-32. https://he02.tci-thaijo.org/index.php/anesthai/article/view/58519.