Amaro, Solange, Maria Máximo, Simão Rodeia, and Patrícia Freitas. “Difficult Airway in the Prehospital Emergency Setting: Portuguese Reality”. Journal of the Portuguese Society of Anesthesiology 28, no. 3 (September 16, 2019): 167–173. Accessed February 8, 2025. https://revistas.rcaap.pt/anestesiologia/article/view/18115.