Teoh, W. ., Saxena, S. ., Shah, M. ., & Sia, A. . (2010). Comparison of three videolaryngoscopes: Pentax Airway Scope, C-MAC, Glidescope vs the Macintosh laryngoscope for tracheal intubation. Anaesthesia, 65(11), 1126-32. https://doi.org/10.1111/j.1365-2044.2010.06513.x