Post Operative Histological Evaluation of Perineural Invasion in Patients Diagnosed with Oral Squamous Cell Carcinoma with No Clinical Signs and Symptoms of Nerve Involvement Pre-Operatively at a Tertiary Care Hospital. IJBR [Internet]. 2025 Apr. 10 [cited 2025 Aug. 14];3(4):73-6. Available from: https://ijbr.com.pk/IJBR/article/view/1004