Yadav, V. K., A. K. Choudhary, M. K. Prasad, G. S. Jheetay, A. Kumar, and R. Shahid. “Role of Nalbuphine As an Adjuvant to Ropivacaine in Supraclavicular Block- a Randomized Control Study”. Anaesthesia, Pain & Intensive Care, Vol. 23, no. 2, Aug. 2019, https://mail.apicareonline.com/index.php/APIC/article/view/1067.