Samina Ashraf, Taoseef Ahmed, Hana Khurshid, Qadeer Ahmed, Kiran Riaz Khan, Tayyeba Aslam, “Diagnostic Accuracy of Hyomental Distance Ratio (HMDR) for Prediction of Difficult Laryngoscopy in Patients Undergoing Surgery Under General Anesthesia Using Tracheal Intubation”, Pakistan Journal of Medical & Health Sciences, vol. 16, no. 11, p. 361, Jan. 2023.