Sana Naz, Shahab Adil, Zafar ul Islam, Ghazala, Imtisal Asim, Lalina Taj Hamid. Comparison of Upper Lip Length to the Incisal Exposure of Maxillary Anterior Teeth. PJMR [Internet]. 2026 Jan. 29 [cited 2026 Sep. 13];64(4):167-71. Available from: https://pjmr.org.pk/index.php/pjmr/article/view/923