Hafiza Maryam Khurshid, S. Rizwan, I. Ahmed, Hafiz Taha Mehmood, N. I. Nagani, and F. Tanvir. “Comparison of Upper and Lower Lip Position, Length and Thickness in Sagittal and Vertical Malocclusion”. Journal of the Pakistan Medical Association, vol. 73, no. 12, Nov. 2023, pp. 2423-6, doi:10.47391/JPMA.6156.