Tayyeba Aslam, Taoseef Ahmed, Ali Kashif, Hana Khurshid, Sibgha Zafar, Samina Ashraf. “Comparison of Modified Mallampati Classification and Thyromental Height to Predict Difficult Intubation”. Pakistan Journal of Medical & Health Sciences, vol. 17, no. 01, Feb. 2023, p. 309, doi:10.53350/pjmhs2023171309.