Calvache, Jose Andres, Maria Ximena Sandoval, and William Andrés Vargas. 2013. “Pressure Applied by the Healthcare Staff on a Cricoid Cartilage Simulator During Sellick’s Maneuver in Rapid Sequence Intubation”. Colombian Journal of Anesthesiology 41 (4):261-66. https://www.revcolanest.com.co/index.php/rca/article/view/650.