“Pregabalin and Intravenous Lidocaine for Management of Postoperative Pain and Surgical Stress Response in Elective Laparotomies: A Double Blind Randomised Controlled Trial”. 2021. Journal of Patan Academy of Health Sciences 8 (3): 69-78. https://doi.org/10.3126/jpahs.v8i3.42026.