Aman, Z., A. Qayum, and K. Khan. “A Study of Effectiveness of Local Bupivacaine Infliltration of the Wound in Reducing the Post Operative Parenteral Narcotic Analgesic Requirement”. Journal of Postgraduate Medical Institute, vol. 18, no. 1, Sept. 2011, https://jpmi.org.pk/index.php/jpmi/article/view/844.