1. Schwartz DE, Matthay MA, Cohen NH. Death and other complications of emergency airway management in critically ill adults. A prospective investigation of 297 tracheal intubations. Anesthesiology. 1995;82(2):367-76.
2. ANZCOR Guideline 11.6 – Equipment and Techniques in Adult Advanced Life Support. Melbourne2016 [cited 2018 08/07/18]. Available from: https://resus.org.au/guidelines/#.
3. Smith GM, Reed JC, Choplin RH. Radiographic detection of esophageal malpositioning of endotracheal tubes. AJR American journal of roentgenology. 1990;154(1):23-6.
4. Muslu B, Sert H, Kaya A, Demircioglu RI, Gozdemir M, Usta B, et al. Use of sonography for rapid identification of esophageal and tracheal intubations in adult patients. Journal of ultrasound in medicine : official journal of the American Institute of Ultrasound in Medicine. 2011;30(5):671-6.
5. Chou EH, Dickman E, Tsou PY, Tessaro M, Tsai YM, Ma MH, et al. Ultrasonography for confirmation of endotracheal tube placement: a systematic review and meta-analysis. Resuscitation. 2015;90:97-103.