1. James D, Adrian M. Noninvasive management of the airway. In: Hagberg CA, Artime CA, Aziz MF, editors. Hagberg and Benumof’s airway management. 4th ed. Philadelphia: Elsevier; 2018. p. 371–93.
2. Dorsch JA, Dorsch SE. Face masks and airways. In: Dorsch JA, Dorsch SE, editors. Understanding anesthesia equipment. 5th ed. New Delhi: Wolters Kluwer; 2008. p. 443–60. (South Asian Edition).
3. Hirabayashi Y, Fujita A, Sugimoto H. Cervical spine movement during bag-mask ventilation. Masui. 2013;62(3):337–40.
4. Ivens D, Verborgh C, Phan Thi HP, Camu F. The quality of breathing and capnography during laryngeal mask and facemask ventilation. Anaesthesia. 1995;50(10):858–62.
5. Tim C. Airway management equipment. In: Andrew JD, Ali D, editors. Ward’s anaesthetic equipment. 6th ed. China: Elsevier; 2012. p. 139–206.