Lim, MMed Y, Wilson S, Katz, MD S. A comparison of patient-controlled epidural pethidine vs. nurse-administered epidural pethidine for analgesia after caesarean section. J of Opioid Management [Internet]. 2006 Mar. 1 [cited 2024 Nov. 21];2(2):99-104. Available from: https://wmpllc.org/ojs/index.php/jom/article/view/1116