Alam S, Waliullah ASM, Samsuddin A. Present Status of Pre-emptive Analgesic and Its Effects on Postoperative Pain Control. Bangladesh J Child Health [Internet]. 2010 Sep. 3 [cited 2024 Dec. 22];32(1):6-9. Available from: https://banglajol.info/index.php/BJCH/article/view/6006