Fiala, A. . (2017) “Effects of Head Extension on Peak Airway Pressure During Mask-Ventilation: A Prospective, Randomized, Clinical Single-Centre Trial”, Annals of Anesthesiology and Critical Care, 2(1), pp. 1–6. Available at: https://journals.sbmu.ac.ir/index.php/anescc/article/view/33417 (Accessed: 8 July 2026).