“Comparison of Positive Predictive value of Mallampati Test and Upper lip Bite test in Association with difficult intubation”, Pjmcr, vol. 5, no. 1, pp. 4211–4218, Mar. 2026, Accessed: Sep. 03, 2026. [Online]. Available: https://pakjmcr.com/index.php/1/article/view/1717