Mazhar, Bushra, Shoaib Younus, Uzair Akhtar, Ali Altaf, Farhan Javed, and Malik Ali Sajid. 2020. “COMPARISON OF POSITIVE ASPIRATION DURING INFERIOR ALVEOLAR NERVE BLOCK USING CONVENTIONAL METALLIC DENTAL SYRINGE VS. DISPOSABLE PLASTIC SYRINGE”. PAFMJ 70 (5), 1539-43. https://pafmj.org/index.php/PAFMJ/article/view/5601.