Khan, Tariq, and Skhikh Muhammad. 2019. “A Comparative Study of the Efficacy of Intermittent Boluses of Nalbuphine and Diclofenac Sodium Infusion on Post-Oprative Pain”. Anaesthesia, Pain & Intensive Care 8 (2). https://mail.apicareonline.com/index.php/APIC/article/view/883.