Yasmin, R., A. Akhtaruzzaman, and S. A. Khan. “Role of Pre-Emptive Analgesia in Post Operative Pain Management - a Review of Literature”. Journal of the Bangladesh Society of Anaesthesiologists, vol. 23, no. 2, Mar. 2014, pp. 62-66, doi:10.3329/jbsa.v23i2.18176.